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Title: Planck 2013 results. XXIV. Constraints on primordial non-Gaussianity

Abstract

The Planck nominal mission cosmic microwave background (CMB) maps yield unprecedented constraints on primordial non-Gaussianity (NG). Using three optimal bispectrum estimators, separable template-fitting (KSW), binned, and modal, we obtain consistent values for the primordial local, equilateral, and orthogonal bispectrum amplitudes, quoting as our final result fNLlocal = 2.7 ± 5.8, fNLequil = -42 ± 75, and fNLorth = -25 ± 39 (68% CL statistical). Non-Gaussianity is detected in the data; using skew-C statistics we find a nonzero bispectrum from residual point sources, and the integrated-Sachs-Wolfe-lensing bispectrum at a level expected in the ΛCDM scenario. The results are based on comprehensive cross-validation of these estimators on Gaussian and non-Gaussian simulations, are stable across component separation techniques, pass an extensive suite of tests, and are confirmed by skew-C, wavelet bispectrum and Minkowski functional estimators. Beyond estimates of individual shape amplitudes, we present model-independent, three-dimensional reconstructions of the Planck CMB bispectrum and thus derive constraints on early-Universe scenarios that generate primordial NG, including general single-field models of inflation, excited initial states (non-Bunch-Davies vacua), and directionally-dependent vector models. We provide an initial survey of scale-dependent feature and resonance models. These results bound both general single-field and multi-field model parameter ranges, such as the speedmore » of sound, cs ≥ 0.02 (95% CL), in an effective field theory parametrization, and the curvaton decay fraction rD ≥ 0.15 (95% CL). The Planck data significantly limit the viable parameter space of the ekpyrotic/cyclic scenarios. The amplitude of the four-point function in the local model τNL< 2800 (95% CL). Taken together, these constraints represent the highest precision tests to date of physical mechanisms for the origin of cosmic structure.« less

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; more »; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; « less
Publication Date:
Research Org.:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
Contributing Org.:
Planck Collaboration
OSTI Identifier:
1523976
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Astronomy and Astrophysics
Additional Journal Information:
Journal Volume: 571; Journal ID: ISSN 0004-6361
Publisher:
EDP Sciences
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS

Citation Formats

Ade, P. A. R., Aghanim, N., Armitage-Caplan, C., Arnaud, M., Ashdown, M., Atrio-Barandela, F., Aumont, J., Baccigalupi, C., Banday, A. J., Barreiro, R. B., Bartlett, J. G., Bartolo, N., Battaner, E., Benabed, K., Benoît, A., Benoit-Lévy, A., Bernard, J. -P., Bersanelli, M., Bielewicz, P., Bobin, J., Bock, J. J., Bonaldi, A., Bonavera, L., Bond, J. R., Borrill, J., Bouchet, F. R., Bridges, M., Bucher, M., Burigana, C., Butler, R. C., Cardoso, J. -F., Catalano, A., Challinor, A., Chamballu, A., Chiang, H. C., Chiang, L. -Y, Christensen, P. R., Church, S., Clements, D. L., Colombi, S., Colombo, L. P. L., Couchot, F., Coulais, A., Crill, B. P., Curto, A., Cuttaia, F., Danese, L., Davies, R. D., Davis, R. J., de Bernardis, P., de Rosa, A., de Zotti, G., Delabrouille, J., Delouis, J. -M., Désert, F. -X., Diego, J. M., Dole, H., Donzelli, S., Doré, O., Douspis, M., Ducout, A., Dunkley, J., Dupac, X., Efstathiou, G., Elsner, F., Enßlin, T. A., Eriksen, H. K., Fergusson, J., Finelli, F., Forni, O., Frailis, M., Franceschi, E., Galeotta, S., Ganga, K., Giard, M., Giraud-Héraud, Y., González-Nuevo, J., Górski, K. M., Gratton, S., Gregorio, A., Gruppuso, A., Hansen, F. K., Hanson, D., Harrison, D., Heavens, A., Henrot-Versillé, S., Hernández-Monteagudo, C., Herranz, D., Hildebrandt, S. R., Hivon, E., Hobson, M., Holmes, W. A., Hornstrup, A., Hovest, W., Huffenberger, K. M., Jaffe, A. H., Jaffe, T. R., Jones, W. C., Juvela, M., Keihänen, E., Keskitalo, R., Kisner, T. S., Knoche, J., Knox, L., Kunz, M., Kurki-Suonio, H., Lacasa, F., Lagache, G., Lähteenmäki, A., Lamarre, J. -M., Lasenby, A., Laureijs, R. J., Lawrence, C. R., Leahy, J. P., Leonardi, R., Lesgourgues, J., Lewis, A., Liguori, M., Lilje, P. B., Linden-Vørnle, M., López-Caniego, M., Lubin, P. M., Macías-Pérez, J. F., Maffei, B., Maino, D., Mandolesi, N., Mangilli, A., Marinucci, D., Maris, M., Marshall, D. J., Martin, P. G., Martínez-González, E., Masi, S., Massardi, M., Matarrese, S., Matthai, F., Mazzotta, P., Meinhold, P. R., Melchiorri, A., Mendes, L., Mennella, A., Migliaccio, M., Mitra, S., Miville-Deschênes, M. -A., Moneti, A., Montier, L., Morgante, G., Mortlock, D., Moss, A., Munshi, D., Murphy, J. A., Naselsky, P., Natoli, P., Netterfield, C. B., Nørgaard-Nielsen, H. U., Noviello, F., Novikov, D., Novikov, I., Osborne, S., Oxborrow, C. A., Paci, F., Pagano, L., Pajot, F., Paoletti, D., Pasian, F., Patanchon, G., Peiris, H. V., Perdereau, O., Perotto, L., Perrotta, F., Piacentini, F., Piat, M., Pierpaoli, E., Pietrobon, D., Plaszczynski, S., Pointecouteau, E., Polenta, G., Ponthieu, N., Popa, L., Poutanen, T., Pratt, G. W., Prézeau, G., Prunet, S., Puget, J. -L., Rachen, J. P., Racine, B., Rebolo, R., Reinecke, M., Remazeilles, M., Renault, C., Renzi, A., Ricciardi, S., Riller, T., Ristorcelli, I., Rocha, G., Rosset, C., Roudier, G., Rubiño-Martín, J. A., Rusholme, B., Sandri, M., Santos, D., Savini, G., Scott, D., Seiffert, M. D., Shellard, E. P. S., Smith, K., Spencer, L. D., Starck, J. -L., Stolyarov, V., Stompor, R., Sudiwala, R., Sunyaev, R., Sureau, F., Sutter, P., Sutton, D., Suur-Uski, A. -S., Sygnet, J. -F., Tauber, J. A., Tavagnacco, D., Terenzi, L., Toffolatti, L., Tomasi, M., Tristram, M., Tucci, M., Tuovinen, J., Valenziano, L., Valiviita, J., Van Tent, B., Varis, J., Vielva, P., Villa, F., Vittorio, N., Wade, L. A., Wandelt, B. D., White, M., White, S. D. M., Yvon, D., Zacchei, A., and Zonca, A. Planck 2013 results. XXIV. Constraints on primordial non-Gaussianity. United States: N. p., 2014. Web. doi:10.1051/0004-6361/201321554.
Ade, P. A. R., Aghanim, N., Armitage-Caplan, C., Arnaud, M., Ashdown, M., Atrio-Barandela, F., Aumont, J., Baccigalupi, C., Banday, A. J., Barreiro, R. B., Bartlett, J. G., Bartolo, N., Battaner, E., Benabed, K., Benoît, A., Benoit-Lévy, A., Bernard, J. -P., Bersanelli, M., Bielewicz, P., Bobin, J., Bock, J. J., Bonaldi, A., Bonavera, L., Bond, J. R., Borrill, J., Bouchet, F. R., Bridges, M., Bucher, M., Burigana, C., Butler, R. C., Cardoso, J. -F., Catalano, A., Challinor, A., Chamballu, A., Chiang, H. C., Chiang, L. -Y, Christensen, P. R., Church, S., Clements, D. L., Colombi, S., Colombo, L. P. L., Couchot, F., Coulais, A., Crill, B. P., Curto, A., Cuttaia, F., Danese, L., Davies, R. D., Davis, R. J., de Bernardis, P., de Rosa, A., de Zotti, G., Delabrouille, J., Delouis, J. -M., Désert, F. -X., Diego, J. M., Dole, H., Donzelli, S., Doré, O., Douspis, M., Ducout, A., Dunkley, J., Dupac, X., Efstathiou, G., Elsner, F., Enßlin, T. A., Eriksen, H. K., Fergusson, J., Finelli, F., Forni, O., Frailis, M., Franceschi, E., Galeotta, S., Ganga, K., Giard, M., Giraud-Héraud, Y., González-Nuevo, J., Górski, K. M., Gratton, S., Gregorio, A., Gruppuso, A., Hansen, F. K., Hanson, D., Harrison, D., Heavens, A., Henrot-Versillé, S., Hernández-Monteagudo, C., Herranz, D., Hildebrandt, S. R., Hivon, E., Hobson, M., Holmes, W. A., Hornstrup, A., Hovest, W., Huffenberger, K. M., Jaffe, A. H., Jaffe, T. R., Jones, W. C., Juvela, M., Keihänen, E., Keskitalo, R., Kisner, T. S., Knoche, J., Knox, L., Kunz, M., Kurki-Suonio, H., Lacasa, F., Lagache, G., Lähteenmäki, A., Lamarre, J. -M., Lasenby, A., Laureijs, R. J., Lawrence, C. R., Leahy, J. P., Leonardi, R., Lesgourgues, J., Lewis, A., Liguori, M., Lilje, P. B., Linden-Vørnle, M., López-Caniego, M., Lubin, P. M., Macías-Pérez, J. F., Maffei, B., Maino, D., Mandolesi, N., Mangilli, A., Marinucci, D., Maris, M., Marshall, D. J., Martin, P. G., Martínez-González, E., Masi, S., Massardi, M., Matarrese, S., Matthai, F., Mazzotta, P., Meinhold, P. R., Melchiorri, A., Mendes, L., Mennella, A., Migliaccio, M., Mitra, S., Miville-Deschênes, M. -A., Moneti, A., Montier, L., Morgante, G., Mortlock, D., Moss, A., Munshi, D., Murphy, J. A., Naselsky, P., Natoli, P., Netterfield, C. B., Nørgaard-Nielsen, H. U., Noviello, F., Novikov, D., Novikov, I., Osborne, S., Oxborrow, C. A., Paci, F., Pagano, L., Pajot, F., Paoletti, D., Pasian, F., Patanchon, G., Peiris, H. V., Perdereau, O., Perotto, L., Perrotta, F., Piacentini, F., Piat, M., Pierpaoli, E., Pietrobon, D., Plaszczynski, S., Pointecouteau, E., Polenta, G., Ponthieu, N., Popa, L., Poutanen, T., Pratt, G. W., Prézeau, G., Prunet, S., Puget, J. -L., Rachen, J. P., Racine, B., Rebolo, R., Reinecke, M., Remazeilles, M., Renault, C., Renzi, A., Ricciardi, S., Riller, T., Ristorcelli, I., Rocha, G., Rosset, C., Roudier, G., Rubiño-Martín, J. A., Rusholme, B., Sandri, M., Santos, D., Savini, G., Scott, D., Seiffert, M. D., Shellard, E. P. S., Smith, K., Spencer, L. D., Starck, J. -L., Stolyarov, V., Stompor, R., Sudiwala, R., Sunyaev, R., Sureau, F., Sutter, P., Sutton, D., Suur-Uski, A. -S., Sygnet, J. -F., Tauber, J. A., Tavagnacco, D., Terenzi, L., Toffolatti, L., Tomasi, M., Tristram, M., Tucci, M., Tuovinen, J., Valenziano, L., Valiviita, J., Van Tent, B., Varis, J., Vielva, P., Villa, F., Vittorio, N., Wade, L. A., Wandelt, B. D., White, M., White, S. D. M., Yvon, D., Zacchei, A., & Zonca, A. Planck 2013 results. XXIV. Constraints on primordial non-Gaussianity. United States. https://doi.org/10.1051/0004-6361/201321554
Ade, P. A. R., Aghanim, N., Armitage-Caplan, C., Arnaud, M., Ashdown, M., Atrio-Barandela, F., Aumont, J., Baccigalupi, C., Banday, A. J., Barreiro, R. B., Bartlett, J. G., Bartolo, N., Battaner, E., Benabed, K., Benoît, A., Benoit-Lévy, A., Bernard, J. -P., Bersanelli, M., Bielewicz, P., Bobin, J., Bock, J. J., Bonaldi, A., Bonavera, L., Bond, J. R., Borrill, J., Bouchet, F. R., Bridges, M., Bucher, M., Burigana, C., Butler, R. C., Cardoso, J. -F., Catalano, A., Challinor, A., Chamballu, A., Chiang, H. C., Chiang, L. -Y, Christensen, P. R., Church, S., Clements, D. L., Colombi, S., Colombo, L. P. L., Couchot, F., Coulais, A., Crill, B. P., Curto, A., Cuttaia, F., Danese, L., Davies, R. D., Davis, R. J., de Bernardis, P., de Rosa, A., de Zotti, G., Delabrouille, J., Delouis, J. -M., Désert, F. -X., Diego, J. M., Dole, H., Donzelli, S., Doré, O., Douspis, M., Ducout, A., Dunkley, J., Dupac, X., Efstathiou, G., Elsner, F., Enßlin, T. A., Eriksen, H. K., Fergusson, J., Finelli, F., Forni, O., Frailis, M., Franceschi, E., Galeotta, S., Ganga, K., Giard, M., Giraud-Héraud, Y., González-Nuevo, J., Górski, K. M., Gratton, S., Gregorio, A., Gruppuso, A., Hansen, F. K., Hanson, D., Harrison, D., Heavens, A., Henrot-Versillé, S., Hernández-Monteagudo, C., Herranz, D., Hildebrandt, S. R., Hivon, E., Hobson, M., Holmes, W. A., Hornstrup, A., Hovest, W., Huffenberger, K. M., Jaffe, A. H., Jaffe, T. R., Jones, W. C., Juvela, M., Keihänen, E., Keskitalo, R., Kisner, T. S., Knoche, J., Knox, L., Kunz, M., Kurki-Suonio, H., Lacasa, F., Lagache, G., Lähteenmäki, A., Lamarre, J. -M., Lasenby, A., Laureijs, R. J., Lawrence, C. R., Leahy, J. P., Leonardi, R., Lesgourgues, J., Lewis, A., Liguori, M., Lilje, P. B., Linden-Vørnle, M., López-Caniego, M., Lubin, P. M., Macías-Pérez, J. F., Maffei, B., Maino, D., Mandolesi, N., Mangilli, A., Marinucci, D., Maris, M., Marshall, D. J., Martin, P. G., Martínez-González, E., Masi, S., Massardi, M., Matarrese, S., Matthai, F., Mazzotta, P., Meinhold, P. R., Melchiorri, A., Mendes, L., Mennella, A., Migliaccio, M., Mitra, S., Miville-Deschênes, M. -A., Moneti, A., Montier, L., Morgante, G., Mortlock, D., Moss, A., Munshi, D., Murphy, J. A., Naselsky, P., Natoli, P., Netterfield, C. B., Nørgaard-Nielsen, H. U., Noviello, F., Novikov, D., Novikov, I., Osborne, S., Oxborrow, C. A., Paci, F., Pagano, L., Pajot, F., Paoletti, D., Pasian, F., Patanchon, G., Peiris, H. V., Perdereau, O., Perotto, L., Perrotta, F., Piacentini, F., Piat, M., Pierpaoli, E., Pietrobon, D., Plaszczynski, S., Pointecouteau, E., Polenta, G., Ponthieu, N., Popa, L., Poutanen, T., Pratt, G. W., Prézeau, G., Prunet, S., Puget, J. -L., Rachen, J. P., Racine, B., Rebolo, R., Reinecke, M., Remazeilles, M., Renault, C., Renzi, A., Ricciardi, S., Riller, T., Ristorcelli, I., Rocha, G., Rosset, C., Roudier, G., Rubiño-Martín, J. A., Rusholme, B., Sandri, M., Santos, D., Savini, G., Scott, D., Seiffert, M. D., Shellard, E. P. S., Smith, K., Spencer, L. D., Starck, J. -L., Stolyarov, V., Stompor, R., Sudiwala, R., Sunyaev, R., Sureau, F., Sutter, P., Sutton, D., Suur-Uski, A. -S., Sygnet, J. -F., Tauber, J. A., Tavagnacco, D., Terenzi, L., Toffolatti, L., Tomasi, M., Tristram, M., Tucci, M., Tuovinen, J., Valenziano, L., Valiviita, J., Van Tent, B., Varis, J., Vielva, P., Villa, F., Vittorio, N., Wade, L. A., Wandelt, B. D., White, M., White, S. D. M., Yvon, D., Zacchei, A., and Zonca, A. Wed . "Planck 2013 results. XXIV. Constraints on primordial non-Gaussianity". United States. https://doi.org/10.1051/0004-6361/201321554. https://www.osti.gov/servlets/purl/1523976.
@article{osti_1523976,
title = {Planck 2013 results. XXIV. Constraints on primordial non-Gaussianity},
author = {Ade, P. A. R. and Aghanim, N. and Armitage-Caplan, C. and Arnaud, M. and Ashdown, M. and Atrio-Barandela, F. and Aumont, J. and Baccigalupi, C. and Banday, A. J. and Barreiro, R. B. and Bartlett, J. G. and Bartolo, N. and Battaner, E. and Benabed, K. and Benoît, A. and Benoit-Lévy, A. and Bernard, J. -P. and Bersanelli, M. and Bielewicz, P. and Bobin, J. and Bock, J. J. and Bonaldi, A. and Bonavera, L. and Bond, J. R. and Borrill, J. and Bouchet, F. R. and Bridges, M. and Bucher, M. and Burigana, C. and Butler, R. C. and Cardoso, J. -F. and Catalano, A. and Challinor, A. and Chamballu, A. and Chiang, H. C. and Chiang, L. -Y and Christensen, P. R. and Church, S. and Clements, D. L. and Colombi, S. and Colombo, L. P. L. and Couchot, F. and Coulais, A. and Crill, B. P. and Curto, A. and Cuttaia, F. and Danese, L. and Davies, R. D. and Davis, R. J. and de Bernardis, P. and de Rosa, A. and de Zotti, G. and Delabrouille, J. and Delouis, J. -M. and Désert, F. -X. and Diego, J. M. and Dole, H. and Donzelli, S. and Doré, O. and Douspis, M. and Ducout, A. and Dunkley, J. and Dupac, X. and Efstathiou, G. and Elsner, F. and Enßlin, T. A. and Eriksen, H. K. and Fergusson, J. and Finelli, F. and Forni, O. and Frailis, M. and Franceschi, E. and Galeotta, S. and Ganga, K. and Giard, M. and Giraud-Héraud, Y. and González-Nuevo, J. and Górski, K. M. and Gratton, S. and Gregorio, A. and Gruppuso, A. and Hansen, F. K. and Hanson, D. and Harrison, D. and Heavens, A. and Henrot-Versillé, S. and Hernández-Monteagudo, C. and Herranz, D. and Hildebrandt, S. R. and Hivon, E. and Hobson, M. and Holmes, W. A. and Hornstrup, A. and Hovest, W. and Huffenberger, K. M. and Jaffe, A. H. and Jaffe, T. R. and Jones, W. C. and Juvela, M. and Keihänen, E. and Keskitalo, R. and Kisner, T. S. and Knoche, J. and Knox, L. and Kunz, M. and Kurki-Suonio, H. and Lacasa, F. and Lagache, G. and Lähteenmäki, A. and Lamarre, J. -M. and Lasenby, A. and Laureijs, R. J. and Lawrence, C. R. and Leahy, J. P. and Leonardi, R. and Lesgourgues, J. and Lewis, A. and Liguori, M. and Lilje, P. B. and Linden-Vørnle, M. and López-Caniego, M. and Lubin, P. M. and Macías-Pérez, J. F. and Maffei, B. and Maino, D. and Mandolesi, N. and Mangilli, A. and Marinucci, D. and Maris, M. and Marshall, D. J. and Martin, P. G. and Martínez-González, E. and Masi, S. and Massardi, M. and Matarrese, S. and Matthai, F. and Mazzotta, P. and Meinhold, P. R. and Melchiorri, A. and Mendes, L. and Mennella, A. and Migliaccio, M. and Mitra, S. and Miville-Deschênes, M. -A. and Moneti, A. and Montier, L. and Morgante, G. and Mortlock, D. and Moss, A. and Munshi, D. and Murphy, J. A. and Naselsky, P. and Natoli, P. and Netterfield, C. B. and Nørgaard-Nielsen, H. U. and Noviello, F. and Novikov, D. and Novikov, I. and Osborne, S. and Oxborrow, C. A. and Paci, F. and Pagano, L. and Pajot, F. and Paoletti, D. and Pasian, F. and Patanchon, G. and Peiris, H. V. and Perdereau, O. and Perotto, L. and Perrotta, F. and Piacentini, F. and Piat, M. and Pierpaoli, E. and Pietrobon, D. and Plaszczynski, S. and Pointecouteau, E. and Polenta, G. and Ponthieu, N. and Popa, L. and Poutanen, T. and Pratt, G. W. and Prézeau, G. and Prunet, S. and Puget, J. -L. and Rachen, J. P. and Racine, B. and Rebolo, R. and Reinecke, M. and Remazeilles, M. and Renault, C. and Renzi, A. and Ricciardi, S. and Riller, T. and Ristorcelli, I. and Rocha, G. and Rosset, C. and Roudier, G. and Rubiño-Martín, J. A. and Rusholme, B. and Sandri, M. and Santos, D. and Savini, G. and Scott, D. and Seiffert, M. D. and Shellard, E. P. S. and Smith, K. and Spencer, L. D. and Starck, J. -L. and Stolyarov, V. and Stompor, R. and Sudiwala, R. and Sunyaev, R. and Sureau, F. and Sutter, P. and Sutton, D. and Suur-Uski, A. -S. and Sygnet, J. -F. and Tauber, J. A. and Tavagnacco, D. and Terenzi, L. and Toffolatti, L. and Tomasi, M. and Tristram, M. and Tucci, M. and Tuovinen, J. and Valenziano, L. and Valiviita, J. and Van Tent, B. and Varis, J. and Vielva, P. and Villa, F. and Vittorio, N. and Wade, L. A. and Wandelt, B. D. and White, M. and White, S. D. M. and Yvon, D. and Zacchei, A. and Zonca, A.},
abstractNote = {The Planck nominal mission cosmic microwave background (CMB) maps yield unprecedented constraints on primordial non-Gaussianity (NG). Using three optimal bispectrum estimators, separable template-fitting (KSW), binned, and modal, we obtain consistent values for the primordial local, equilateral, and orthogonal bispectrum amplitudes, quoting as our final result fNLlocal = 2.7 ± 5.8, fNLequil = -42 ± 75, and fNLorth = -25 ± 39 (68% CL statistical). Non-Gaussianity is detected in the data; using skew-Cℓ statistics we find a nonzero bispectrum from residual point sources, and the integrated-Sachs-Wolfe-lensing bispectrum at a level expected in the ΛCDM scenario. The results are based on comprehensive cross-validation of these estimators on Gaussian and non-Gaussian simulations, are stable across component separation techniques, pass an extensive suite of tests, and are confirmed by skew-Cℓ, wavelet bispectrum and Minkowski functional estimators. Beyond estimates of individual shape amplitudes, we present model-independent, three-dimensional reconstructions of the Planck CMB bispectrum and thus derive constraints on early-Universe scenarios that generate primordial NG, including general single-field models of inflation, excited initial states (non-Bunch-Davies vacua), and directionally-dependent vector models. We provide an initial survey of scale-dependent feature and resonance models. These results bound both general single-field and multi-field model parameter ranges, such as the speed of sound, cs ≥ 0.02 (95% CL), in an effective field theory parametrization, and the curvaton decay fraction rD ≥ 0.15 (95% CL). The Planck data significantly limit the viable parameter space of the ekpyrotic/cyclic scenarios. The amplitude of the four-point function in the local model τNL< 2800 (95% CL). Taken together, these constraints represent the highest precision tests to date of physical mechanisms for the origin of cosmic structure.},
doi = {10.1051/0004-6361/201321554},
journal = {Astronomy and Astrophysics},
number = ,
volume = 571,
place = {United States},
year = {Wed Oct 29 00:00:00 EDT 2014},
month = {Wed Oct 29 00:00:00 EDT 2014}
}

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Fig. 1 Fig. 1: Permitted observational domain of Eq. (27) for the CMB bispectrum $b$$ℓ$1$ℓ$2$ℓ$3 . Allowed multipole values ($ℓ$1$ℓ$2$ℓ$3) lie inside the shaded “tetrapyd” region (tetrahedron+pyramid), satisfying both the triangle condition and the experimental resolution $ℓ$ < $L$ ≡ $ℓ$max.

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Works referenced in this record:

Optimal estimation of non-Gaussianity
journal, August 2005


Primordial fluctuations and non-Gaussianities from multifield DBI Galileon inflation
journal, November 2011

  • Renaux-Petel, Sébastien; Mizuno, Shuntaro; Koyama, Kazuya
  • Journal of Cosmology and Astroparticle Physics, Vol. 2011, Issue 11
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Introducing Mexican Needlets for cmb Analysis: Issues for Practical Applications and Comparison with Standard Needlets
journal, May 2011


Forecasts on the contamination induced by unresolved point sources in primordial non-Gaussianity beyond Planck
journal, April 2013

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Galilean symmetry in the effective theory of inflation: new shapes of non-Gaussianity
journal, February 2011

  • Creminelli, Paolo; D'Amico, Guido; Musso, Marcello
  • Journal of Cosmology and Astroparticle Physics, Vol. 2011, Issue 02
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k-Inflation
journal, July 1999


Non-Gaussianity from the Bispectrum in General Multiple Field Inflation
journal, January 2011

  • Mizuno, Shuntaro; Arroja, Frederico; Koyama, Kazuya
  • International Journal of Modern Physics: Conference Series, Vol. 01
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Non-gaussianity in fluctuations from warm inflation
text, January 2007


Planck 2013 results. XVI. Cosmological parameters
journal, October 2014


Extragalactic source counts and contributions to the anisotropies of the cosmic microwave background: predictions for the Planck Surveyor mission
journal, June 1998


Constraining Monodromy Inflation
text, January 2013


Folded resonant non-Gaussianity in general single field inflation
journal, December 2010


Non-Gaussianity Consistency Relation for Multifield Inflation
journal, June 2011


Features of heavy physics in the CMB power spectrum
text, January 2010


Non-Gaussianity from inflation
journal, April 2002


CMB power spectrum estimation using wavelets
journal, October 2008


Angular trispectra of CMB temperature and polarization
journal, September 2002


Cosmic microwave background constraints on dark energy dynamics: Analysis beyond the power spectrum
journal, May 2005


Constraints on primordial non-Gaussianity from a needlet analysis of the WMAP -5 data
journal, July 2009


Characterization of the non-Gaussianity of radio and IR point sources at CMB frequencies: Non-Gaussianity of radio and IR point sources
journal, March 2012


Trispectrum estimation in various models of equilateral type non-Gaussianity
journal, January 2012


Cosmic microwave background bispectrum and inflation
journal, February 2000


Warm Inflation
journal, October 1995


Non-gaussian density perturbations in inflationary cosmologies
journal, October 1987


Observational signatures and non-Gaussianities of general single-field inflation
journal, January 2007

  • Chen, Xingang; Huang, Min-xin; Kachru, Shamit
  • Journal of Cosmology and Astroparticle Physics, Vol. 2007, Issue 01
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Scalar speed limits and cosmology: Acceleration from D-cceleration
journal, November 2004


Planck 2013 results. XV. CMB power spectra and likelihood
journal, October 2014


Large non-Gaussianities in the effective field theory approach to single-field inflation: the bispectrum
journal, August 2010

  • Bartolo, Nicola; Fasiello, Matteo; Matarrese, Sabino
  • Journal of Cosmology and Astroparticle Physics, Vol. 2010, Issue 08
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Planck 2013 results. III. LFI systematic uncertainties
journal, October 2014


Planck 2013 results. X. HFI energetic particle effects: characterization, removal, and simulation
journal, October 2014


The angular dependence of the three-point correlation function of the cosmic microwave background radiation as predicted by inflationary cosmologies
journal, January 1993

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Reconstructing the inflaton potential—an overview
journal, April 1997

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Signatures of initial state modifications on bispectrum statistics
journal, May 2009

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  • Journal of Cosmology and Astroparticle Physics, Vol. 2009, Issue 05
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CMB anisotropies at second order III: bispectrum from products of the first-order perturbations
journal, May 2009

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  • Journal of Cosmology and Astroparticle Physics, Vol. 2009, Issue 05
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Gauge-invariant second-order perturbations and non-Gaussianity from inflation
journal, September 2003


Needlet bispectrum asymmetries in the WMAP 5-year data: Needlet bispectrum asymmetries in the WMAP5
journal, December 2009

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Modulated fluctuations from hybrid inflation
journal, October 2004


Sachs-Wolfe at second order: the CMB bispectrum on large angular scales
journal, August 2009

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  • Journal of Cosmology and Astroparticle Physics, Vol. 2009, Issue 08
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Quasi-single field inflation and non-Gaussianities
journal, April 2010


Non-Gaussianity in fluctuations from warm inflation
journal, April 2007


Constraining monodromy inflation
journal, September 2013

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  • Journal of Cosmology and Astroparticle Physics, Vol. 2013, Issue 09
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A simulation pipeline for the Planck mission
journal, December 2005


Planck 2013 results. VI. High Frequency Instrument data processing
journal, October 2014


More on crinkles in the last scattering surface
journal, May 2010


Planck 2013 results. XI. All-sky model of thermal dust emission
journal, October 2014


Bispectra from two-field inflation using the long-wavelength formalism
text, January 2010


Nonlinear evolution of long-wavelength metric fluctuations in inflationary models
journal, December 1990


Predictions for non-Gaussianity from non-local inflation
journal, June 2008


Universal Bound on N -Point Correlations from Inflation
journal, November 2011


Multiresolution internal template cleaning: an application to the Wilkinson Microwave Anisotropy Probe 7-yr polarization data: Multiresolution internal template cleaning
journal, January 2012


An Isocurvature Model for Early Galaxy Assembly
journal, July 1997

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Making cosmic microwave background temperature and polarization maps with MADAM
journal, February 2010


A numerical study of non-Gaussianity in the curvaton scenario
journal, September 2006


Imprint of Reionization on the Cosmic Microwave Background Bispectrum
journal, May 2000

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Wilkinson Microwave Anisotropy Probe 5-yr constraints on f nl with wavelets
journal, February 2009


Primordial Non-Gaussianity and Bispectrum Measurements in the Cosmic Microwave Background and Large-Scale Structure
journal, January 2010

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Inflation from warped space
journal, August 2005


Non-Gaussian isocurvature perturbations from inflation
journal, July 1997


COBE—DMR constraints on the non-linear coupling parameter: a wavelet based method
journal, March 2003


General CMB bispectrum analysis using wavelets and separable modes
journal, August 2013


Cosmological 'seed' magnetic field from inflation
journal, May 1992

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The CMB bispectrum
journal, December 2012

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  • Journal of Cosmology and Astroparticle Physics, Vol. 2012, Issue 12
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Lensing reconstruction from Planck sky maps: inhomogeneous noise: Lensing reconstruction from Planck sky maps
journal, December 2009


Anisotropic power spectrum and bispectrum in the f ( ϕ ) F 2 mechanism
journal, January 2013


Signature of supersymmetry from the early universe
journal, May 2012


Bispectra from two-field inflation using the long-wavelength formalism
journal, June 2011


New mechanism for generating density perturbations from inflation
journal, January 2004


Planck 2013 results. XII. Diffuse component separation
journal, October 2014


The real shape of non-Gaussianities
text, January 2011


Effects and detectability of quasi-single field inflation in the large-scale structure and cosmic microwave background
journal, August 2012

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The real shape of non-Gaussianities
journal, October 2011


Perturbations of a Cosmological Model and Angular Variations of the Microwave Background
journal, January 1967

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First observational tests of eternal inflation: Analysis methods and WMAP 7-year results
journal, August 2011

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  • Physical Review D, Vol. 84, Issue 4
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Equilateral non-Gaussianity from multifield dynamics
journal, February 2010


Planck 2013 results. II. Low Frequency Instrument data processing
journal, October 2014


First‐Year Wilkinson Microwave Anisotropy Probe ( WMAP ) Observations: Implications For Inflation
journal, September 2003

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Planck 2013 results. XXVII. Doppler boosting of the CMB: Eppur si muove
journal, October 2014


Planck 2013 results. XIII. Galactic CO emission
journal, October 2014


Optimal bispectrum estimator and simulations of the CMB lensing-integrated Sachs Wolfe non-Gaussian signal
journal, July 2013


Algorithms for bispectra: forecasting, optimal analysis and simulation: Algorithms for bispectra
journal, September 2011


Planck 2013 results. XXVII. Doppler boosting of the CMB: Eppur si muove
text, January 2013


First‐Year Wilkinson Microwave Anisotropy Probe ( WMAP ) Observations: Tests of Gaussianity
journal, September 2003

  • Komatsu, E.; Kogut, A.; Nolta, M. R.
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Planck 2013 results. XXVIII. The Planck Catalogue of Compact Sources
text, January 2013


Closet non-Gaussianity of anisotropic Gaussian fluctuations
journal, October 1997


Weak gravitational lensing of the CMB
journal, June 2006


Planck 2013 results. XXVI. Background geometry and topology of the Universe
text, January 2013


The effect of the linear term on the wavelet estimator of primordial non-Gaussianity: The effect of the linear term on the
journal, October 2012

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Measuring our peculiar velocity on the CMB with high-multipole off-diagonal correlations
journal, July 2011

  • Amendola, Luca; Catena, Riccardo; Masina, Isabella
  • Journal of Cosmology and Astroparticle Physics, Vol. 2011, Issue 07
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Hunting for primordial non-Gaussianity in the cosmic microwave background
journal, May 2010


Fast Estimator of Primordial Non‐Gaussianity from Temperature and Polarization Anisotropies in the Cosmic Microwave Background
journal, August 2007

  • Yadav, Amit P. S.; Komatsu, Eiichiro; Wandelt, Benjamin D.
  • The Astrophysical Journal, Vol. 664, Issue 2
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Imprints of a primordial preferred direction on the microwave background
journal, April 2007


Ekpyrotic Nongaussianity: A Review
journal, January 2010


Weak Gravitational Lensing of the CMB
text, January 2006


The shape of the CMB lensing bispectrum
journal, March 2011

  • Lewis, Antony; Challinor, Anthony; Hanson, Duncan
  • Journal of Cosmology and Astroparticle Physics, Vol. 2011, Issue 03
  • DOI: 10.1088/1475-7516/2011/03/018

Planck 2013 results. XIV. Zodiacal emission
journal, October 2014


Best unbiased estimators for the three-point correlators of the cosmic microwave background radiation
journal, October 2000


Optimal limits on f NL local from WMAP 5-year data
journal, September 2009

  • Smith, Kendrick M.; Senatore, Leonardo; Zaldarriaga, Matias
  • Journal of Cosmology and Astroparticle Physics, Vol. 2009, Issue 09
  • DOI: 10.1088/1475-7516/2009/09/006

Probability distribution for non-Gaussianity estimators constructed from the CMB trispectrum
journal, September 2012


Planck 2013 results X. Energetic particle effects: characterization, removal, and simulation
text, January 2013


Signatures of anisotropic sources in the squeezed-limit bispectrum of the cosmic microwave background
journal, May 2013

  • Shiraishi, Maresuke; Komatsu, Eiichiro; Peloso, Marco
  • Journal of Cosmology and Astroparticle Physics, Vol. 2013, Issue 05
  • DOI: 10.1088/1475-7516/2013/05/002

Joint Bayesian component separation and CMB power spectrum estimation
text, January 2007


Operator product expansion of inflationary correlators and conformal symmetry of de Sitter
journal, November 2012


Efficient Wiener filtering without preconditioning
journal, January 2013


Component separation methods for the PLANCK mission
journal, October 2008


Planck 2013 results. XXII. Constraints on inflation
journal, October 2014


Planck 2013 results. XVI. Cosmological parameters
text, January 2013


Cosmological perturbations
journal, May 2009


BOOMERanG constraints on primordial non-Gaussianity from analytical Minkowski functionals: BOOMERanG constraints on non-Gaussianity
journal, August 2010


Optimal Estimation of Non-Gaussianity
text, January 2005


Effects of cosmological moduli fields on cosmic microwave background
journal, December 2001


The needlets bispectrum
journal, January 2008

  • Lan, Xiaohong; Marinucci, Domenico
  • Electronic Journal of Statistics, Vol. 2, Issue 0
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Planck 2013 results. XXX. Cosmic infrared background measurements and implications for star formation
journal, October 2014


Adiabatic CMB perturbations in pre-Big-Bang string cosmology
journal, April 2002


General CMB and primordial bispectrum estimation: Mode expansion, map making, and measures of F NL
journal, July 2010


The Cosmic Microwave Background Bispectrum and Inflation
text, January 1999


A single-field consistency relation for the three-point function
journal, October 2004


Stimulated creation of quanta during inflation and the observable universe
journal, July 2011


Large non-Gaussianities in single-field inflation
journal, June 2007

  • Chen, Xingang; Easther, Richard; Lim, Eugene A.
  • Journal of Cosmology and Astroparticle Physics, Vol. 2007, Issue 06
  • DOI: 10.1088/1475-7516/2007/06/023

Fast Estimator of Primordial Non‐Gaussianity from Temperature and Polarization Anisotropies in the Cosmic Microwave Background. II. Partial Sky Coverage and Inhomogeneous Noise
journal, May 2008

  • Yadav, Amit P. S.; Komatsu, Eiichiro; Wandelt, Benjamin D.
  • The Astrophysical Journal, Vol. 678, Issue 2
  • DOI: 10.1086/586695

Non-gaussianities from perturbing recombination
journal, September 2009

  • Senatore, Leonardo; Tassev, Svetlin; Zaldarriaga, Matias
  • Journal of Cosmology and Astroparticle Physics, Vol. 2009, Issue 09
  • DOI: 10.1088/1475-7516/2009/09/038

Planck 2013 results. I. Overview of products and scientific results
text, January 2013


Modulated reheating and large non-gaussianity in string cosmology
journal, May 2012


Non-Gaussianity and Minkowski functionals: forecasts for Planck
journal, December 2012

  • Ducout, A.; Bouchet, F. R.; Colombi, S.
  • Monthly Notices of the Royal Astronomical Society, Vol. 429, Issue 3
  • DOI: 10.1093/mnras/sts483

A note on calm excited states of inflation
journal, March 2011


Planck 2013 results. XXIII. Isotropy and statistics of the CMB
journal, October 2014


Cosmological perturbations from inhomogeneous reheating, freeze-out, and mass domination
journal, April 2004


Planck 2013 results. IX. HFI spectral response
journal, October 2014


Large-scale structure, the cosmic microwave background and primordial non-Gaussianity
journal, March 2000


Primordial non-gaussianity and bispectrum measurements in the cosmic microwave background and large-scale structure
text, January 2010

  • Liguori, M.; Sefusatti, E.; Fergusson, James
  • Apollo - University of Cambridge Repository
  • DOI: 10.17863/cam.13490

Planck 2013 results. VIII. HFI photometric calibration and mapmaking
journal, October 2014


Planck 2013 results. VII. HFI time response and beams
journal, October 2014


Consistency relation for multifield inflation scenario with all loop contributions
journal, May 2012


Planck 2013 results. VII. HFI time response and beams
text, January 2013


Planck 2013 results. II. Low Frequency Instrument data processing
text, January 2013


Non-Gaussian isocurvature perturbations from Goldstone modes generated during inflation
journal, June 1997


Lattice Calculation of Non-Gaussian Density Perturbations from the Massless Preheating Inflationary Model
journal, January 2008


Ghost inflation
journal, April 2004

  • Arkani-Hamed, Nima; Creminelli, Paolo; Mukohyama, Shinji
  • Journal of Cosmology and Astroparticle Physics, Vol. 2004, Issue 04
  • DOI: 10.1088/1475-7516/2004/04/001

Planck 2013 results. XVIII. The gravitational lensing-infrared background correlation
journal, October 2014


Planck 2013 results. IV. Low Frequency Instrument beams and window functions
journal, October 2014


Non-gaussian features of primordial fluctuations in single field inflationary models
journal, May 2003


Planck 2013 results. XVII. Gravitational lensing by large-scale structure
journal, October 2014


Peculiar velocity effects in high-resolution microwave background experiments
journal, April 2002


Primordial Non‐Gaussianity and Analytical Formula for Minkowski Functionals of the Cosmic Microwave Background and Large‐Scale Structure
journal, December 2006

  • Hikage, Chiaki; Komatsu, Eiichiro; Matsubara, Takahiko
  • The Astrophysical Journal, Vol. 653, Issue 1
  • DOI: 10.1086/508653

Planck 2013 results. XXVI. Background geometry and topology of the Universe
journal, October 2014


Comparing brane inflation to WMAP
journal, May 2007

  • Bean, Rachel; Shandera, Sarah E.; Tye, S-H Henry
  • Journal of Cosmology and Astroparticle Physics, Vol. 2007, Issue 05
  • DOI: 10.1088/1475-7516/2007/05/004

Review of Local Non-Gaussianity from Multifield Inflation
journal, January 2010

  • Byrnes, Christian T.; Choi, Ki-Young
  • Advances in Astronomy, Vol. 2010
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Cosmological Perturbations
book, May 2010


A single field inflation model with large local non-Gaussianity
journal, June 2013

  • Chen, Xingang; Firouzjahi, Hassan; Hossein Namjoo, Mohammad
  • EPL (Europhysics Letters), Vol. 102, Issue 5
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Multi-variate joint PDF for non-Gaussianities: exact formulation and generic approximations
journal, June 2013

  • Verde, Licia; Jimenez, Raul; Alvarez-Gaume, Luis
  • Journal of Cosmology and Astroparticle Physics, Vol. 2013, Issue 06
  • DOI: 10.1088/1475-7516/2013/06/023

Gauge-Invariant Temperature Anisotropies and Primordial Non-Gaussianity
journal, December 2004


Cosmic Microwave Background Component Separation by Parameter Estimation
journal, April 2006

  • Eriksen, H. K.; Dickinson, C.; Lawrence, C. R.
  • The Astrophysical Journal, Vol. 641, Issue 2
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On classification of models of large local-type non-Gaussianity
journal, December 2010

  • Suyama, Teruaki; Takahashi, Tomo; Yamaguchi, Masahide
  • Journal of Cosmology and Astroparticle Physics, Vol. 2010, Issue 12
  • DOI: 10.1088/1475-7516/2010/12/030

Non-Gaussianities in single field inflation and their optimal limits from the WMAP 5-year data
journal, January 2010

  • Senatore, Leonardo; Smith, Kendrick M.; Zaldarriaga, Matias
  • Journal of Cosmology and Astroparticle Physics, Vol. 2010, Issue 01
  • DOI: 10.1088/1475-7516/2010/01/028

IMPROVED CONSTRAINTS ON PRIMORDIAL NON-GAUSSIANITY FOR THE WILKINSON MICROWAVE ANISOTROPY PROBE 5-YEAR DATA
journal, October 2009


The shape of non-Gaussianities
journal, August 2004

  • Babich, Daniel; Creminelli, Paolo; Zaldarriaga, Matias
  • Journal of Cosmology and Astroparticle Physics, Vol. 2004, Issue 08
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Gauge-invariant cosmological perturbations
journal, October 1980


The pre-launch Planck Sky Model: a model of sky emission at submillimetre to centimetre wavelengths
journal, May 2013


FAST PIXEL SPACE CONVOLUTION FOR COSMIC MICROWAVE BACKGROUND SURVEYS WITH ASYMMETRIC BEAMS AND COMPLEX SCAN STRATEGIES: FEBeCoP
journal, January 2011

  • Mitra, S.; Rocha, G.; Górski, K. M.
  • The Astrophysical Journal Supplement Series, Vol. 193, Issue 1
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Cosmic microwave background bispectrum and slow-roll inflation
journal, April 2000


The three-point correlation function of the cosmic microwave background in inflationary models
journal, July 1994

  • Gangui, Alejandro; Lucchin, Francesco; Matarrese, Sabino
  • The Astrophysical Journal, Vol. 430
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Optimal limits on primordial magnetic fields from CMB temperature bispectrum of passive modes
journal, March 2012

  • Shiraishi, Maresuke; Nitta, Daisuke; Yokoyama, Shuichiro
  • Journal of Cosmology and Astroparticle Physics, Vol. 2012, Issue 03
  • DOI: 10.1088/1475-7516/2012/03/041

Phenomenology of a pseudo-scalar inflaton: naturally large nongaussianity
journal, April 2011

  • Barnaby, Neil; Namba, Ryo; Peloso, Marco
  • Journal of Cosmology and Astroparticle Physics, Vol. 2011, Issue 04
  • DOI: 10.1088/1475-7516/2011/04/009

On soft limits of inflationary correlation functions
journal, November 2012

  • Assassi, Valentin; Baumann, Daniel; Green, Daniel
  • Journal of Cosmology and Astroparticle Physics, Vol. 2012, Issue 11
  • DOI: 10.1088/1475-7516/2012/11/047

Features of heavy physics in the CMB power spectrum
journal, January 2011

  • Achúcarro, Ana; Gong, Jinn-Ouk; Hardeman, Sjoerd
  • Journal of Cosmology and Astroparticle Physics, Vol. 2011, Issue 01
  • DOI: 10.1088/1475-7516/2011/01/030

Non-Gaussianity from inflation: theory and observations
journal, November 2004


The interaction of matter and radiation in a hot-model universe
journal, July 1969

  • Zeldovich, Ya. B.; Sunyaev, R. A.
  • Astrophysics and Space Science, Vol. 4, Issue 3
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Non-Gaussianity and the Cosmic Microwave Background Anisotropies
journal, January 2010

  • Bartolo, N.; Matarrese, S.; Riotto, A.
  • Advances in Astronomy, Vol. 2010
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The intrinsic bispectrum of the cosmic microwave background
journal, April 2013

  • Pettinari, Guido W.; Fidler, Christian; Crittenden, Robert
  • Journal of Cosmology and Astroparticle Physics, Vol. 2013, Issue 04
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HEALPix: A Framework for High‐Resolution Discretization and Fast Analysis of Data Distributed on the Sphere
journal, April 2005

  • Gorski, K. M.; Hivon, E.; Banday, A. J.
  • The Astrophysical Journal, Vol. 622, Issue 2
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Integrated Sachs-Wolfe effect from the cross correlation of WMAP 3 year and the NRAO VLA sky survey data: New results and constraints on dark energy
journal, August 2006


Non-Gaussianities in models with a varying inflaton decay rate
journal, February 2004


Planck 2013 results. XXI. Power spectrum and high-order statistics of the Planck all-sky Compton parameter map
journal, October 2014


Planck 2013 results. XXIX. The Planck catalogue of Sunyaev-Zeldovich sources
journal, October 2014


Fingerprints of primordial universe paradigms as features in density perturbations
journal, December 2011


Planck 2013 results. XX. Cosmology from Sunyaev–Zeldovich cluster counts
journal, October 2014


Planck 2013 results. XIX. The integrated Sachs-Wolfe effect
journal, October 2014


Large trispectrum in two-field slow-roll inflation
journal, September 2012

  • Elliston, Joseph; Alabidi, Laila; Huston, Ian
  • Journal of Cosmology and Astroparticle Physics, Vol. 2012, Issue 09
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Improved Simulation of Non-Gaussian Temperature and Polarization Cosmic Microwave Background maps
journal, September 2009


Planck 2013 results. V. LFI calibration
journal, October 2014


Planck 2013 results. XXVIII. The Planck Catalogue of Compact Sources
journal, October 2014


Planck 2013 results. I. Overview of products and scientific results
journal, October 2014


CMB 3-point functions generated by nonlinearities at recombination
journal, October 2004


Joint Bayesian Component Separation and CMB Power Spectrum Estimation
journal, March 2008

  • Eriksen, H. K.; Jewell, J. B.; Dickinson, C.
  • The Astrophysical Journal, Vol. 676, Issue 1
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The full squeezed CMB bispectrum from inflation
journal, June 2012


Cosmological constraints on dissipative models of inflation
journal, January 2008


Nearly tight frames and space-frequency analysis on compact manifolds
journal, August 2008


Wavelets, ridgelets and curvelets on the sphere
journal, January 2006


Non-Gaussianity in the modulated reheating scenario
journal, January 2008


Generation and characterization of large non-Gaussianities in single field inflation
journal, April 2008

  • Chen, Xingang; Easther, Richard; Lim, Eugene A.
  • Journal of Cosmology and Astroparticle Physics, Vol. 2008, Issue 04
  • DOI: 10.1088/1475-7516/2008/04/010

Crinkles in the last scattering surface: Non-Gaussianity from inhomogeneous recombination
journal, January 2009


Generating the curvature perturbation at the end of inflation
journal, November 2005


Non-Gaussianities in two-field inflation
journal, May 2006


Wavelets, ridgelets and curvelets on the sphere
text, January 2005


Multidetector multicomponent spectral matching and applications for cosmic microwave background data analysis
journal, December 2003


Inflationary Prediction for Primordial Non-Gaussianity
journal, September 2005


DBI in the sky: Non-Gaussianity from inflation with a speed limit
journal, December 2004


Solid Inflation
text, January 2012


Large-scale Density Inhomogeneities in the Universe
journal, February 1968


Resonant non-gaussianity
journal, January 2011


Component Separation With Flexible Models—Application to Multichannel Astrophysical Observations
journal, October 2008

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