Unresolved Gamma-Ray Sky through its Angular Power Spectrum
Abstract
The gamma-ray sky has been observed with unprecedented accuracy in the last decade by the Fermi-large area telescope (LAT), allowing us to resolve and understand the high-energy Universe. The nature of the remaining unresolved emission [unresolved gamma-ray background (UGRB)] below the LAT source detection threshold can be uncovered by characterizing the amplitude and angular scale of the UGRB fluctuation field. This Letter presents a measurement of the UGRB autocorrelation angular power spectrum based on eight years of Fermi-LAT Pass 8 data products. The analysis is designed to be robust against contamination from resolved sources and noise systematics. The sensitivity to subthreshold sources is greatly enhanced with respect to previous measurements. We find evidence (with ~ 3.7σ significance) that the scenario in which two classes of sources contribute to the UGRB signal is favored over a single class. A double power law with exponential cutoff can explain the anisotropy energy spectrum well, with photon indices of the two populations being 2.55 ± 0.23 and 1.86 ± 0.15.
- Authors:
- more »
- Publication Date:
- Research Org.:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Org.:
- USDOE
- Contributing Org.:
- Fermi-LAT Collaboration
- OSTI Identifier:
- 1490359
- Alternate Identifier(s):
- OSTI ID: 1546140
- Grant/Contract Number:
- AC02-76SF00515; CSTO161409; L. 232/2016; 2017-14-H.0
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 121; Journal Issue: 24; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 79 ASTRONOMY AND ASTROPHYSICS
Citation Formats
Ackermann, M., Ajello, M., Baldini, L., Ballet, J., Barbiellini, G., Bastieri, D., Bellazzini, R., Bissaldi, E., Blandford, R. D., Bonino, R., Bottacini, E., Bregeon, J., Bruel, P., Buehler, R., Burns, E., Buson, S., Cameron, R. A., Caputo, R., Caraveo, P. A., Cavazzuti, E., Chen, S., Chiaro, G., Ciprini, S., Costantin, D., Cuoco, A., Cutini, S., D’Ammando, F., de la Torre Luque, P., de Palma, F., Desai, A., Digel, S. W., Di Lalla, N., Di Mauro, M., Di Venere, L., Fana Dirirsa, F., Favuzzi, C., Franckowiak, A., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Giordano, F., Giroletti, M., Green, D., Grenier, I. A., Guillemot, L., Guiriec, S., Horan, D., Jóhannesson, G., Kuss, M., Larsson, S., Latronico, L., Li, J., Liodakis, I., Longo, F., Loparco, F., Lubrano, P., Magill, J. D., Maldera, S., Malyshev, D., Manfreda, A., Mazziotta, M. N., Mereu, I., Michelson, P. F., Mitthumsiri, W., Mizuno, T., Monzani, M. E., Morselli, A., Moskalenko, I. V., Negro, M., Nuss, E., Orienti, M., Orlando, E., Palatiello, M., Paliya, V. S., Paneque, D., Persic, M., Pesce-Rollins, M., Petrosian, V., Piron, F., Porter, T. A., Principe, G., Rainò, S., Rando, R., Razzano, M., Razzaque, S., Reimer, A., Reimer, O., Serini, D., Sgrò, C., Siskind, E. J., Spandre, G., Spinelli, P., Suson, D. J., Tajima, H., Takahashi, M., Thayer, J. B., Tibaldo, L., Torres, D. F., Troja, E., Venters, T. M., Vianello, G., Wood, K., Yassine, M., Zaharijas, G., Ammazzalorso, S., Fornengo, N., and Regis, M. Unresolved Gamma-Ray Sky through its Angular Power Spectrum. United States: N. p., 2018.
Web. doi:10.1103/physrevlett.121.241101.
Ackermann, M., Ajello, M., Baldini, L., Ballet, J., Barbiellini, G., Bastieri, D., Bellazzini, R., Bissaldi, E., Blandford, R. D., Bonino, R., Bottacini, E., Bregeon, J., Bruel, P., Buehler, R., Burns, E., Buson, S., Cameron, R. A., Caputo, R., Caraveo, P. A., Cavazzuti, E., Chen, S., Chiaro, G., Ciprini, S., Costantin, D., Cuoco, A., Cutini, S., D’Ammando, F., de la Torre Luque, P., de Palma, F., Desai, A., Digel, S. W., Di Lalla, N., Di Mauro, M., Di Venere, L., Fana Dirirsa, F., Favuzzi, C., Franckowiak, A., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Giordano, F., Giroletti, M., Green, D., Grenier, I. A., Guillemot, L., Guiriec, S., Horan, D., Jóhannesson, G., Kuss, M., Larsson, S., Latronico, L., Li, J., Liodakis, I., Longo, F., Loparco, F., Lubrano, P., Magill, J. D., Maldera, S., Malyshev, D., Manfreda, A., Mazziotta, M. N., Mereu, I., Michelson, P. F., Mitthumsiri, W., Mizuno, T., Monzani, M. E., Morselli, A., Moskalenko, I. V., Negro, M., Nuss, E., Orienti, M., Orlando, E., Palatiello, M., Paliya, V. S., Paneque, D., Persic, M., Pesce-Rollins, M., Petrosian, V., Piron, F., Porter, T. A., Principe, G., Rainò, S., Rando, R., Razzano, M., Razzaque, S., Reimer, A., Reimer, O., Serini, D., Sgrò, C., Siskind, E. J., Spandre, G., Spinelli, P., Suson, D. J., Tajima, H., Takahashi, M., Thayer, J. B., Tibaldo, L., Torres, D. F., Troja, E., Venters, T. M., Vianello, G., Wood, K., Yassine, M., Zaharijas, G., Ammazzalorso, S., Fornengo, N., & Regis, M. Unresolved Gamma-Ray Sky through its Angular Power Spectrum. United States. https://doi.org/10.1103/physrevlett.121.241101
Ackermann, M., Ajello, M., Baldini, L., Ballet, J., Barbiellini, G., Bastieri, D., Bellazzini, R., Bissaldi, E., Blandford, R. D., Bonino, R., Bottacini, E., Bregeon, J., Bruel, P., Buehler, R., Burns, E., Buson, S., Cameron, R. A., Caputo, R., Caraveo, P. A., Cavazzuti, E., Chen, S., Chiaro, G., Ciprini, S., Costantin, D., Cuoco, A., Cutini, S., D’Ammando, F., de la Torre Luque, P., de Palma, F., Desai, A., Digel, S. W., Di Lalla, N., Di Mauro, M., Di Venere, L., Fana Dirirsa, F., Favuzzi, C., Franckowiak, A., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Giordano, F., Giroletti, M., Green, D., Grenier, I. A., Guillemot, L., Guiriec, S., Horan, D., Jóhannesson, G., Kuss, M., Larsson, S., Latronico, L., Li, J., Liodakis, I., Longo, F., Loparco, F., Lubrano, P., Magill, J. D., Maldera, S., Malyshev, D., Manfreda, A., Mazziotta, M. N., Mereu, I., Michelson, P. F., Mitthumsiri, W., Mizuno, T., Monzani, M. E., Morselli, A., Moskalenko, I. V., Negro, M., Nuss, E., Orienti, M., Orlando, E., Palatiello, M., Paliya, V. S., Paneque, D., Persic, M., Pesce-Rollins, M., Petrosian, V., Piron, F., Porter, T. A., Principe, G., Rainò, S., Rando, R., Razzano, M., Razzaque, S., Reimer, A., Reimer, O., Serini, D., Sgrò, C., Siskind, E. J., Spandre, G., Spinelli, P., Suson, D. J., Tajima, H., Takahashi, M., Thayer, J. B., Tibaldo, L., Torres, D. F., Troja, E., Venters, T. M., Vianello, G., Wood, K., Yassine, M., Zaharijas, G., Ammazzalorso, S., Fornengo, N., and Regis, M. Wed .
"Unresolved Gamma-Ray Sky through its Angular Power Spectrum". United States. https://doi.org/10.1103/physrevlett.121.241101. https://www.osti.gov/servlets/purl/1490359.
@article{osti_1490359,
title = {Unresolved Gamma-Ray Sky through its Angular Power Spectrum},
author = {Ackermann, M. and Ajello, M. and Baldini, L. and Ballet, J. and Barbiellini, G. and Bastieri, D. and Bellazzini, R. and Bissaldi, E. and Blandford, R. D. and Bonino, R. and Bottacini, E. and Bregeon, J. and Bruel, P. and Buehler, R. and Burns, E. and Buson, S. and Cameron, R. A. and Caputo, R. and Caraveo, P. A. and Cavazzuti, E. and Chen, S. and Chiaro, G. and Ciprini, S. and Costantin, D. and Cuoco, A. and Cutini, S. and D’Ammando, F. and de la Torre Luque, P. and de Palma, F. and Desai, A. and Digel, S. W. and Di Lalla, N. and Di Mauro, M. and Di Venere, L. and Fana Dirirsa, F. and Favuzzi, C. and Franckowiak, A. and Fukazawa, Y. and Funk, S. and Fusco, P. and Gargano, F. and Gasparrini, D. and Giglietto, N. and Giordano, F. and Giroletti, M. and Green, D. and Grenier, I. A. and Guillemot, L. and Guiriec, S. and Horan, D. and Jóhannesson, G. and Kuss, M. and Larsson, S. and Latronico, L. and Li, J. and Liodakis, I. and Longo, F. and Loparco, F. and Lubrano, P. and Magill, J. D. and Maldera, S. and Malyshev, D. and Manfreda, A. and Mazziotta, M. N. and Mereu, I. and Michelson, P. F. and Mitthumsiri, W. and Mizuno, T. and Monzani, M. E. and Morselli, A. and Moskalenko, I. V. and Negro, M. and Nuss, E. and Orienti, M. and Orlando, E. and Palatiello, M. and Paliya, V. S. and Paneque, D. and Persic, M. and Pesce-Rollins, M. and Petrosian, V. and Piron, F. and Porter, T. A. and Principe, G. and Rainò, S. and Rando, R. and Razzano, M. and Razzaque, S. and Reimer, A. and Reimer, O. and Serini, D. and Sgrò, C. and Siskind, E. J. and Spandre, G. and Spinelli, P. and Suson, D. J. and Tajima, H. and Takahashi, M. and Thayer, J. B. and Tibaldo, L. and Torres, D. F. and Troja, E. and Venters, T. M. and Vianello, G. and Wood, K. and Yassine, M. and Zaharijas, G. and Ammazzalorso, S. and Fornengo, N. and Regis, M.},
abstractNote = {The gamma-ray sky has been observed with unprecedented accuracy in the last decade by the Fermi-large area telescope (LAT), allowing us to resolve and understand the high-energy Universe. The nature of the remaining unresolved emission [unresolved gamma-ray background (UGRB)] below the LAT source detection threshold can be uncovered by characterizing the amplitude and angular scale of the UGRB fluctuation field. This Letter presents a measurement of the UGRB autocorrelation angular power spectrum based on eight years of Fermi-LAT Pass 8 data products. The analysis is designed to be robust against contamination from resolved sources and noise systematics. The sensitivity to subthreshold sources is greatly enhanced with respect to previous measurements. We find evidence (with ~ 3.7σ significance) that the scenario in which two classes of sources contribute to the UGRB signal is favored over a single class. A double power law with exponential cutoff can explain the anisotropy energy spectrum well, with photon indices of the two populations being 2.55 ± 0.23 and 1.86 ± 0.15.},
doi = {10.1103/physrevlett.121.241101},
journal = {Physical Review Letters},
number = 24,
volume = 121,
place = {United States},
year = {Wed Dec 12 00:00:00 EST 2018},
month = {Wed Dec 12 00:00:00 EST 2018}
}
Web of Science
Works referenced in this record:
Cross-correlation of the extragalactic gamma-ray background with luminous red galaxies
journal, December 2015
- Shirasaki, Masato; Horiuchi, Shunsaku; Yoshida, Naoki
- Physical Review D, Vol. 92, Issue 12
Power spectrum tomography of dark matter annihilation with local galaxy distribution
journal, October 2014
- Ando, Shin'ichiro
- Journal of Cosmology and Astroparticle Physics, Vol. 2014, Issue 10
STATISTICS OF GAMMA-RAY POINT SOURCES BELOW THE FERMI DETECTION LIMIT
journal, August 2011
- Malyshev, Dmitry; Hogg, David W.
- The Astrophysical Journal, Vol. 738, Issue 2
THE LUMINOSITY FUNCTION OF FERMI -DETECTED FLAT-SPECTRUM RADIO QUASARS
journal, May 2012
- Ajello, M.; Shaw, M. S.; Romani, R. W.
- The Astrophysical Journal, Vol. 751, Issue 2
A cross-correlation study of the Fermi-LAT γ-ray diffuse extragalactic signal: Cross-correlation study of Fermi EGB signal
journal, July 2011
- Xia, Jun-Qing; Cuoco, Alessandro; Branchini, Enzo
- Monthly Notices of the Royal Astronomical Society, Vol. 416, Issue 3
Deriving the Contribution of Blazars to the Fermi -LAT Extragalactic γ -ray Background at E > 10 GeV with Efficiency Corrections and Photon Statistics
journal, March 2018
- Di Mauro, M.; Manconi, S.; Zechlin, H. -S.
- The Astrophysical Journal, Vol. 856, Issue 2
Mapping dark matter in the gamma-ray sky with galaxy catalogs
journal, July 2014
- Ando, Shin’ichiro; Benoit-Lévy, Aurélien; Komatsu, Eiichiro
- Physical Review D, Vol. 90, Issue 2
Dark Matter Searches in the Gamma-Ray Extragalactic Background via Cross-Correlations with Galaxy Catalogs
journal, December 2015
- Cuoco, Alessandro; Xia, Jun-Qing; Regis, Marco
- The Astrophysical Journal Supplement Series, Vol. 221, Issue 2
EVIDENCE OF CROSS-CORRELATION BETWEEN THE CMB LENSING AND THE γ -RAY SKY
journal, March 2015
- Fornengo, Nicolao; Perotto, Laurence; Regis, Marco
- The Astrophysical Journal, Vol. 802, Issue 1
CROSS-CORRELATING THE γ -RAY SKY WITH CATALOGS OF GALAXY CLUSTERS
journal, January 2017
- Branchini, Enzo; Camera, Stefano; Cuoco, Alessandro
- The Astrophysical Journal Supplement Series, Vol. 228, Issue 1
Particle Dark Matter Searches Outside the Local Group
journal, June 2015
- Regis, Marco; Xia, Jun-Qing; Cuoco, Alessandro
- Physical Review Letters, Vol. 114, Issue 24
Astrophysical interpretation of the anisotropies in the unresolved gamma-ray background
journal, June 2017
- Ando, Shin’ichiro; Fornasa, Mattia; Fornengo, Nicolao
- Physical Review D, Vol. 95, Issue 12
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
Diffuse γ-Ray Emission from Misaligned Active Galactic Nuclei
journal, December 2013
- Di Mauro, M.; Calore, F.; Donato, F.
- The Astrophysical Journal, Vol. 780, Issue 2
Angular power spectrum of the diffuse gamma-ray emission as measured by the Fermi Large Area Telescope and constraints on its dark matter interpretation
journal, December 2016
- Fornasa, Mattia; Cuoco, Alessandro; Zavala, Jesús
- Physical Review D, Vol. 94, Issue 12
Fast Cosmic Microwave Background Analyses via Correlation Functions
journal, February 2001
- Szapudi, István; Prunet, Simon; Pogosyan, Dmitry
- The Astrophysical Journal, Vol. 548, Issue 2
THE SPECTRUM OF ISOTROPIC DIFFUSE GAMMA-RAY EMISSION BETWEEN 100 MeV AND 820 GeV
journal, January 2015
- Ackermann, M.; Ajello, M.; Albert, A.
- The Astrophysical Journal, Vol. 799, Issue 1
3FHL: The Third Catalog of Hard Fermi -LAT Sources
journal, September 2017
- Ajello, M.; Atwood, W. B.; Baldini, L.
- The Astrophysical Journal Supplement Series, Vol. 232, Issue 2
Anisotropies in the diffuse gamma-ray background measured by the Fermi LAT
journal, April 2012
- Ackermann, M.; Ajello, M.; Albert, A.
- Physical Review D, Vol. 85, Issue 8
Search for Dark Matter Annihilation in Galaxy Groups
journal, March 2018
- Lisanti, Mariangela; Mishra-Sharma, Siddharth; Rodd, Nicholas L.
- Physical Review Letters, Vol. 120, Issue 10
Cross-correlation of weak lensing and gamma rays: implications for the nature of dark matter
journal, February 2017
- Tröster, Tilman; Camera, Stefano; Fornasa, Mattia
- Monthly Notices of the Royal Astronomical Society, Vol. 467, Issue 3
Myths and truths concerning estimation of power spectra: the case for a hybrid estimator
journal, April 2004
- Efstathiou, G.
- Monthly Notices of the Royal Astronomical Society, Vol. 349, Issue 2
TOMOGRAPHY OF THE FERMI -LAT γ -RAY DIFFUSE EXTRAGALACTIC SIGNAL VIA CROSS CORRELATIONS WITH GALAXY CATALOGS
journal, March 2015
- Xia, Jun-Qing; Cuoco, Alessandro; Branchini, Enzo
- The Astrophysical Journal Supplement Series, Vol. 217, Issue 1
Cosmological constraints on dark matter annihilation and decay: Cross-correlation analysis of the extragalactic -ray background and cosmic shear
journal, September 2016
- Shirasaki, Masato; Macias, Oscar; Horiuchi, Shunsaku
- Physical Review D, Vol. 94, Issue 6
Cross correlation of cosmic shear and extragalactic gamma-ray background: Constraints on the dark matter annihilation cross section
journal, September 2014
- Shirasaki, Masato; Horiuchi, Shunsaku; Yoshida, Naoki
- Physical Review D, Vol. 90, Issue 6
DEVELOPMENT OF THE MODEL OF GALACTIC INTERSTELLAR EMISSION FOR STANDARD POINT-SOURCE ANALYSIS OF FERMI LARGE AREA TELESCOPE DATA
journal, April 2016
- Acero, F.; Ackermann, M.; Ajello, M.
- The Astrophysical Journal Supplement Series, Vol. 223, Issue 2
The Large-Sample Distribution of the Likelihood Ratio for Testing Composite Hypotheses
journal, March 1938
- Wilks, S. S.
- The Annals of Mathematical Statistics, Vol. 9, Issue 1
A Novel Approach in the Weakly Interacting Massive Particle Quest: Cross-Correlation of Gamma-Ray Anisotropies and Cosmic Shear
journal, June 2013
- Camera, Stefano; Fornasa, Mattia; Fornengo, Nicolao
- The Astrophysical Journal, Vol. 771, Issue 1
Modelling the flux distribution function of the extragalactic gamma-ray background from dark matter annihilation
journal, September 2015
- Feyereisen, Michael R.; Ando, Shin'ichiro; Lee, Samuel K.
- Journal of Cosmology and Astroparticle Physics, Vol. 2015, Issue 09
The nature of the Diffuse Gamma-Ray Background
journal, October 2015
- Fornasa, Mattia; Sánchez-Conde, Miguel A.
- Physics Reports, Vol. 598
UNVEILING THE GAMMA-RAY SOURCE COUNT DISTRIBUTION BELOW THE FERMI DETECTION LIMIT WITH PHOTON STATISTICS
journal, July 2016
- Zechlin, Hannes-S.; Cuoco, Alessandro; Donato, Fiorenza
- The Astrophysical Journal Supplement Series, Vol. 225, Issue 2
Tomographic-spectral approach for dark matter detection in the cross-correlation between cosmic shear and diffuse γ-ray emission
journal, June 2015
- Camera, S.; Fornasa, M.; Fornengo, N.
- Journal of Cosmology and Astroparticle Physics, Vol. 2015, Issue 06
Statistical Measurement of the Gamma-Ray Source-Count Distribution as a Function of Energy
journal, July 2016
- Zechlin, Hannes-S.; Cuoco, Alessandro; Donato, Fiorenza
- The Astrophysical Journal, Vol. 826, Issue 2
Mapping extragalactic dark matter annihilation with galaxy surveys: A systematic study of stacked group searches
journal, March 2018
- Lisanti, Mariangela; Mishra-Sharma, Siddharth; Rodd, Nicholas L.
- Physical Review D, Vol. 97, Issue 6
Constraining particle dark matter using local galaxy distribution
journal, June 2016
- Ando, Shin'ichiro; Ishiwata, Koji
- Journal of Cosmology and Astroparticle Physics, Vol. 2016, Issue 06
DECIPHERING CONTRIBUTIONS TO THE EXTRAGALACTIC GAMMA-RAY BACKGROUND FROM 2 GeV TO 2 TeV
journal, November 2016
- Lisanti, Mariangela; Mishra-Sharma, Siddharth; Necib, Lina
- The Astrophysical Journal, Vol. 832, Issue 2
Fast estimation of polarization power spectra using correlation functions
journal, May 2004
- Chon, Gayoung; Challinor, Anthony; Prunet, Simon
- Monthly Notices of the Royal Astronomical Society, Vol. 350, Issue 3
Error analysis of quadratic power spectrum estimates for cosmic microwave background polarization: sampling covariance
journal, June 2005
- Challinor, A.; Chon, G.
- Monthly Notices of the Royal Astronomical Society, Vol. 360, Issue 2
The Spectrum of Isotropic Diffuse Gamma-Ray Emission Between 100 MeV and 820 GeV
text, January 2015
- Ackermann, Markus; Ajello, M.; Albert, A.
- Deutsches Elektronen-Synchrotron, DESY, Hamburg
Anisotropies in the diffuse gamma-ray background measured by the Fermi-LAT
journal, November 2012
- Cuoco, A.; Linden, T.; Mazziotta, M. N.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 692
Development of the Model of Galactic Interstellar Emission for Standard Point-Source Analysis of FERMI Large Area Telescope Data
text, January 2016
- Acero, F.; Ackermann, Markus; Ajello, M.
- Deutsches Elektronen-Synchrotron, DESY, Hamburg
3FHL: The Third Catalog of Hard Fermi -LAT Sources
text, January 2017
- Ajello, M.; Atwood, W. B.; Baldini, L.
- Deutsches Elektronen-Synchrotron, DESY, Hamburg
Statistical measurement of the gamma-ray source-count distribution as a function of energy
conference, January 2017
- Zechlin, H. -S.; Cuoco, A.; Donato, F.
- HIGH ENERGY GAMMA-RAY ASTRONOMY: 6th International Meeting on High Energy Gamma-Ray Astronomy, AIP Conference Proceedings
Anisotropies in the diffuse gamma-ray background measured by the Fermi LAT
text, January 2012
- Ackermann, M.; Ajello, M.; Albert, A.
- arXiv
Power spectrum tomography of dark matter annihilation with local galaxy distribution
text, January 2014
- Ando, Shin'ichiro
- arXiv
Evidence of cross-correlation between the CMB lensing and the gamma-ray sky
text, January 2014
- Fornengo, N.; Perotto, L.; Regis, M.
- arXiv
Particle dark matter searches outside the Local Group
text, January 2015
- Regis, Marco; Xia, Jun-Qing; Cuoco, Alessandro
- arXiv
Dark matter searches in the gamma-ray extragalactic background via cross-correlations with galaxy catalogues
text, January 2015
- Cuoco, Alessandro; Xia, Jun-Qing; Regis, Marco
- arXiv
Unveiling the Gamma-ray Source Count Distribution Below the Fermi Detection Limit with Photon Statistics
text, January 2015
- Zechlin, Hannes-S.; Cuoco, Alessandro; Donato, Fiorenza
- arXiv
Development of the Model of Galactic Interstellar Emission for Standard Point-Source Analysis of Fermi Large Area Telescope Data
text, January 2016
- Acero, F.; Ackermann, M.; Ajello, M.
- arXiv
Deciphering Contributions to the Extragalactic Gamma-Ray Background from 2 GeV to 2 TeV
text, January 2016
- Lisanti, Mariangela; Mishra-Sharma, Siddharth; Necib, Lina
- arXiv
Cosmological constraints on dark matter annihilation and decay: Cross-correlation analysis of the extragalactic $γ$-ray background and cosmic shear
text, January 2016
- Shirasaki, Masato; Macias, Oscar; Horiuchi, Shunsaku
- arXiv
Cross-correlation of weak lensing and gamma rays: implications for the nature of dark matter
text, January 2016
- Tröster, Tilman; Camera, Stefano; Fornasa, Mattia
- arXiv
Mapping Extragalactic Dark Matter Annihilation with Galaxy Surveys: A Systematic Study of Stacked Group Searches
text, January 2017
- Lisanti, Mariangela; Mishra-Sharma, Siddharth; Rodd, Nicholas L.
- arXiv
Fast estimation of polarization power spectra using correlation functions
text, January 2003
- Chon, Gayoung; Challinor, Anthony; Prunet, Simon
- arXiv
HEALPix -- a Framework for High Resolution Discretization, and Fast Analysis of Data Distributed on the Sphere
text, January 2004
- Gorski, K. M.; Hivon, E.; Banday, A. J.
- arXiv
Works referencing / citing this record:
Galactic diffuse gamma-ray emission at TeV energy
journal, January 2020
- Neronov, A.; Semikoz, D.
- Astronomy & Astrophysics, Vol. 633
Searching for gamma-ray emission from galaxy clusters at low redshift
journal, November 2019
- Colavincenzo, Manuel; Tan, Xiuhui; Ammazzalorso, Simone
- Monthly Notices of the Royal Astronomical Society, Vol. 491, Issue 3
Searching for gamma-ray emission from galaxy clusters at low redshift
text, January 2019
- Colavincenzo, Manuel; Tan, Xiuhui; Ammazzalorso, Simone
- arXiv
Detection of cross-correlation between gravitational lensing and gamma rays
text, January 2019
- Ammazzalorso, S.; Gruen, D.; Regis, M.
- arXiv