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Title: Detection of the pairwise kinematic Sunyaev-Zel'dovich effect with BOSS DR11 and the Atacama Cosmology Telescope

Abstract

Here, we present a new measurement of the kinematic Sunyaev-Zel'dovich effect using data from the Atacama Cosmology Telescope (ACT) and the Baryon Oscillation Spectroscopic Survey (BOSS). Using 600 square degrees of overlapping sky area, we evaluate the mean pairwise baryon momentum associated with the positions of 50,000 bright galaxies in the BOSS DR11 Large Scale Structure catalog. A non-zero signal arises from the large-scale motions of halos containing the sample galaxies. The data fits an analytical signal model well, with the optical depth to microwave photon scattering as a free parameter determining the overall signal amplitude. We estimate the covariance matrix of the mean pairwise momentum as a function of galaxy separation, using microwave sky simulations, jackknife evaluation, and bootstrap estimates. The most conservative simulation-based errors give signal-to-noise estimates between 3.6 and 4.1 for varying galaxy luminosity cuts. We discuss how the other error determinations can lead to higher signal-to-noise values, and consider the impact of several possible systematic errors. Estimates of the optical depth from the average thermal Sunyaev-Zel'dovich signal at the sample galaxy positions are broadly consistent with those obtained from the mean pairwise momentum signal.

Authors:
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Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
Contributing Org.:
The ACTPol Collaboration
OSTI Identifier:
1374374
Grant/Contract Number:  
AC02-76SF00515
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Cosmology and Astroparticle Physics
Additional Journal Information:
Journal Volume: 2017; Journal Issue: 03; Journal ID: ISSN 1475-7516
Publisher:
Institute of Physics (IOP)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; CMBR experiments; galaxy surveys; hydrodynamical simulations; Sunyaev-Zeldovich effect

Citation Formats

Bernardis, F. De, Aiola, S., Vavagiakis, E. M., Battaglia, N., Niemack, M. D., Beall, J., Becker, D. T., Bond, J. R., Calabrese, E., Cho, H., Coughlin, K., Datta, R., Devlin, M., Dunkley, J., Dunner, R., Ferraro, S., Fox, A., Gallardo, P. A., Halpern, M., Hand, N., Hasselfield, M., Henderson, S. W., Hill, J. C., Hilton, G. C., Hilton, M., Hincks, A. D., Hlozek, R., Hubmayr, J., Huffenberger, K., Hughes, J. P., Irwin, K. D., Koopman, B. J., Kosowsky, A., Li, D., Louis, T., Lungu, M., Madhavacheril, M. S., Maurin, L., McMahon, J., Moodley, K., Naess, S., Nati, F., Newburgh, L., Nibarger, J. P., Page, L. A., Partridge, B., Schaan, E., Schmitt, B. L., Sehgal, N., Sievers, J., Simon, S. M., Spergel, D. N., Staggs, S. T., Stevens, J. R., Thornton, R. J., Engelen, A. van, Lanen, J. Van, and Wollack, E. J. Detection of the pairwise kinematic Sunyaev-Zel'dovich effect with BOSS DR11 and the Atacama Cosmology Telescope. United States: N. p., 2017. Web. doi:10.1088/1475-7516/2017/03/008.
Bernardis, F. De, Aiola, S., Vavagiakis, E. M., Battaglia, N., Niemack, M. D., Beall, J., Becker, D. T., Bond, J. R., Calabrese, E., Cho, H., Coughlin, K., Datta, R., Devlin, M., Dunkley, J., Dunner, R., Ferraro, S., Fox, A., Gallardo, P. A., Halpern, M., Hand, N., Hasselfield, M., Henderson, S. W., Hill, J. C., Hilton, G. C., Hilton, M., Hincks, A. D., Hlozek, R., Hubmayr, J., Huffenberger, K., Hughes, J. P., Irwin, K. D., Koopman, B. J., Kosowsky, A., Li, D., Louis, T., Lungu, M., Madhavacheril, M. S., Maurin, L., McMahon, J., Moodley, K., Naess, S., Nati, F., Newburgh, L., Nibarger, J. P., Page, L. A., Partridge, B., Schaan, E., Schmitt, B. L., Sehgal, N., Sievers, J., Simon, S. M., Spergel, D. N., Staggs, S. T., Stevens, J. R., Thornton, R. J., Engelen, A. van, Lanen, J. Van, & Wollack, E. J. Detection of the pairwise kinematic Sunyaev-Zel'dovich effect with BOSS DR11 and the Atacama Cosmology Telescope. United States. doi:10.1088/1475-7516/2017/03/008.
Bernardis, F. De, Aiola, S., Vavagiakis, E. M., Battaglia, N., Niemack, M. D., Beall, J., Becker, D. T., Bond, J. R., Calabrese, E., Cho, H., Coughlin, K., Datta, R., Devlin, M., Dunkley, J., Dunner, R., Ferraro, S., Fox, A., Gallardo, P. A., Halpern, M., Hand, N., Hasselfield, M., Henderson, S. W., Hill, J. C., Hilton, G. C., Hilton, M., Hincks, A. D., Hlozek, R., Hubmayr, J., Huffenberger, K., Hughes, J. P., Irwin, K. D., Koopman, B. J., Kosowsky, A., Li, D., Louis, T., Lungu, M., Madhavacheril, M. S., Maurin, L., McMahon, J., Moodley, K., Naess, S., Nati, F., Newburgh, L., Nibarger, J. P., Page, L. A., Partridge, B., Schaan, E., Schmitt, B. L., Sehgal, N., Sievers, J., Simon, S. M., Spergel, D. N., Staggs, S. T., Stevens, J. R., Thornton, R. J., Engelen, A. van, Lanen, J. Van, and Wollack, E. J. Tue . "Detection of the pairwise kinematic Sunyaev-Zel'dovich effect with BOSS DR11 and the Atacama Cosmology Telescope". United States. doi:10.1088/1475-7516/2017/03/008. https://www.osti.gov/servlets/purl/1374374.
@article{osti_1374374,
title = {Detection of the pairwise kinematic Sunyaev-Zel'dovich effect with BOSS DR11 and the Atacama Cosmology Telescope},
author = {Bernardis, F. De and Aiola, S. and Vavagiakis, E. M. and Battaglia, N. and Niemack, M. D. and Beall, J. and Becker, D. T. and Bond, J. R. and Calabrese, E. and Cho, H. and Coughlin, K. and Datta, R. and Devlin, M. and Dunkley, J. and Dunner, R. and Ferraro, S. and Fox, A. and Gallardo, P. A. and Halpern, M. and Hand, N. and Hasselfield, M. and Henderson, S. W. and Hill, J. C. and Hilton, G. C. and Hilton, M. and Hincks, A. D. and Hlozek, R. and Hubmayr, J. and Huffenberger, K. and Hughes, J. P. and Irwin, K. D. and Koopman, B. J. and Kosowsky, A. and Li, D. and Louis, T. and Lungu, M. and Madhavacheril, M. S. and Maurin, L. and McMahon, J. and Moodley, K. and Naess, S. and Nati, F. and Newburgh, L. and Nibarger, J. P. and Page, L. A. and Partridge, B. and Schaan, E. and Schmitt, B. L. and Sehgal, N. and Sievers, J. and Simon, S. M. and Spergel, D. N. and Staggs, S. T. and Stevens, J. R. and Thornton, R. J. and Engelen, A. van and Lanen, J. Van and Wollack, E. J.},
abstractNote = {Here, we present a new measurement of the kinematic Sunyaev-Zel'dovich effect using data from the Atacama Cosmology Telescope (ACT) and the Baryon Oscillation Spectroscopic Survey (BOSS). Using 600 square degrees of overlapping sky area, we evaluate the mean pairwise baryon momentum associated with the positions of 50,000 bright galaxies in the BOSS DR11 Large Scale Structure catalog. A non-zero signal arises from the large-scale motions of halos containing the sample galaxies. The data fits an analytical signal model well, with the optical depth to microwave photon scattering as a free parameter determining the overall signal amplitude. We estimate the covariance matrix of the mean pairwise momentum as a function of galaxy separation, using microwave sky simulations, jackknife evaluation, and bootstrap estimates. The most conservative simulation-based errors give signal-to-noise estimates between 3.6 and 4.1 for varying galaxy luminosity cuts. We discuss how the other error determinations can lead to higher signal-to-noise values, and consider the impact of several possible systematic errors. Estimates of the optical depth from the average thermal Sunyaev-Zel'dovich signal at the sample galaxy positions are broadly consistent with those obtained from the mean pairwise momentum signal.},
doi = {10.1088/1475-7516/2017/03/008},
journal = {Journal of Cosmology and Astroparticle Physics},
number = 03,
volume = 2017,
place = {United States},
year = {2017},
month = {3}
}

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