Constraints on the annihilation cross section of dark matter particles from anisotropies in the diffuse gamma-ray background measured with Fermi-LAT

被引：60

作者：

Ando, Shin'ichiro ^{[1
,2
]}

Komatsu, Eiichiro ^{[3
,4
,5
,6
]}

机构：

[1] Univ Amsterdam, Gravitat Astroparticle Phys Amsterdam GRAPPA, NL-1090 GL Amsterdam, Netherlands

[2] Univ Amsterdam, Inst Theoret Phys, NL-1090 GL Amsterdam, Netherlands

[3] Max Planck Inst Astrophys, D-85741 Garching, Germany

[4] Univ Tokyo, Kavli Inst Phys & Math Universe Kavli IPMU, WPI, Todai Inst Adv Study, Kashiwa, Chiba 2778583, Japan

[5] Univ Texas Austin, Texas Cosmol Ctr, Austin, TX 78712 USA

[6] Univ Texas Austin, Dept Astron, Austin, TX 78712 USA

来源：

PHYSICAL REVIEW D | 2013年 / 87卷 / 12期

关键词：

LUMINOSITY FUNCTION; POWER SPECTRUM; RADIATION; CLUSTERS; BLAZARS; HALOES; PROBE;

D O I：

10.1103/PhysRevD.87.123539

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Annihilation of dark matter particles in cosmological halos (including the halo of the Milky Way) contributes to the diffuse gamma-ray background (DGRB). As this contribution will appear anisotropic in the sky, one can use the angular power spectrum of anisotropies in the DGRB to constrain the properties of dark matter particles. By comparing the updated analytic model of the angular power spectrum of the DGRB from dark matter annihilation with the power spectrum recently measured from the 22-month data of the Fermi Large Area Telescope (LAT), we place upper limits on the annihilation cross section of dark matter particles as a function of dark matter masses. We find that the current data exclude <sigma nu > greater than or similar to 10(-25) cm(3) s(-1) for annihilation into b (b) over bar at the dark matter mass of 10 GeV, which is a factor of 3 times larger than the canonical cross section. The limits are weaker for larger dark matter masses. The limits can be improved further with more Fermi-LAT data as well as by using the power spectrum at lower multipoles (l less than or similar to 150), which are currently not used due to a potential Galactic foreground contamination.

引用

页数：12

共 58 条

[1] Contribution of blazars to the extragalactic diffuse gamma-ray background and their future spatial resolution [J].

Abazajian, Kevork N. ;

Blanchet, Steve ;

Harding, J. Patrick .

PHYSICAL REVIEW D, 2011, 84 (10)

[2] THE FERMI-LAT HIGH-LATITUDE SURVEY: SOURCE COUNT DISTRIBUTIONS AND THE ORIGIN OF THE EXTRAGALACTIC DIFFUSE BACKGROUND [J].

Abdo, A. A. ;

Ackermann, M. ;

Ajello, M. ;

Antolini, E. ;

Baldini, L. ;

Ballet, J. ;

Barbiellini, G. ;

Bastieri, D. ;

Baughman, B. M. ;

Bechtol, K. ;

Bellazzini, R. ;

Berenji, B. ;

Blandford, R. D. ;

Bloom, E. D. ;

Bonamente, E. ;

Borgland, A. W. ;

Bouvier, A. ;

Bregeon, J. ;

Brez, A. ;

Brigida, M. ;

Bruel, P. ;

Burnett, T. H. ;

Buson, S. ;

Caliandro, G. A. ;

Cameron, R. A. ;

Caraveo, P. A. ;

Carrigan, S. ;

Casandjian, J. M. ;

Cavazzuti, E. ;

Cecchi, C. ;

Celik, Oe ;

Charles, E. ;

Chekhtman, A. ;

Cheung, C. C. ;

Chiang, J. ;

Ciprini, S. ;

Claus, R. ;

Cohen-Tanugi, J. ;

Conrad, J. ;

Costamante, L. ;

Cutini, S. ;

Dermer, C. D. ;

de Angelis, A. ;

de Palma, F. ;

do Couto e Silva, E. ;

Drell, P. S. ;

Dubois, R. ;

Dumora, D. ;

Farnier, C. ;

Favuzzi, C. .

ASTROPHYSICAL JOURNAL, 2010, 720 (01) :435-453

[3] Spectrum of the Isotropic Diffuse Gamma-Ray Emission Derived from First-Year Fermi Large Area Telescope Data [J].

abdo, A. A. ;

Ackermann, M. ;

Ajello, M. ;

Atwood, W. B. ;

Baldini, L. ;

Ballet, J. ;

Barbiellini, G. ;

Bastieri, D. ;

Baughman, B. M. ;

Bechtol, K. ;

Bellazzini, R. ;

Berenji, B. ;

Blandford, R. D. ;

Bloom, E. D. ;

Bonamente, E. ;

Borgland, A. W. ;

Bregeon, J. ;

Brez, A. ;

Brigida, M. ;

Bruel, P. ;

Burnett, T. H. ;

Buson, S. ;

Caliandro, G. A. ;

Cameron, R. A. ;

Caraveo, P. A. ;

Casandjian, J. M. ;

Cavazzuti, E. ;

Cecchi, C. ;

Celik, Oe ;

Charles, E. ;

Chekhtman, A. ;

Cheung, C. C. ;

Chiang, J. ;

Ciprini, S. ;

Claus, R. ;

Cohen-Tanugi, J. ;

Cominsky, L. R. ;

Conrad, J. ;

Cutini, S. ;

Dermer, C. D. ;

de Angelis, A. ;

de Palma, F. ;

Digel, S. W. ;

Di Bernardo, G. ;

do Couto e Silva, E. ;

Drell, P. S. ;

Drlica-Wagner, A. ;

Dubois, R. ;

Dumora, D. ;

Farnier, C. .

PHYSICAL REVIEW LETTERS, 2010, 104 (10)

[4] Anisotropies in the diffuse gamma-ray background measured by the Fermi LAT [J].

Ackermann, M. ;

Ajello, M. ;

Albert, A. ;

Baldini, L. ;

Ballet, J. ;

Barbiellini, G. ;

Bastieri, D. ;

Bechtol, K. ;

Bellazzini, R. ;

Bloom, E. D. ;

Bonamente, E. ;

Borgland, A. W. ;

Brandt, T. J. ;

Bregeon, J. ;

Brigida, M. ;

Bruel, P. ;

Buehler, R. ;

Buson, S. ;

Caliandro, G. A. ;

Cameron, R. A. ;

Caraveo, P. A. ;

Cecchi, C. ;

Charles, E. ;

Chekhtman, A. ;

Chiang, J. ;

Ciprini, S. ;

Claus, R. ;

Cohen-Tanugi, J. ;

Conrad, J. ;

Cuoco, A. ;

Cutini, S. ;

D'Ammando, F. ;

de Palma, F. ;

Dermer, C. D. ;

Digel, S. W. ;

do Couto e Silva, E. ;

Drell, P. S. ;

Drlica-Wagner, A. ;

Dubois, R. ;

Favuzzi, C. ;

Fegan, S. J. ;

Ferrara, E. C. ;

Fortin, P. ;

Fukazawa, Y. ;

Fusco, P. ;

Gargano, F. ;

Gasparrini, D. ;

Germani, S. ;

Giglietto, N. ;

Giroletti, M. .

PHYSICAL REVIEW D, 2012, 85 (08)

[5] Constraining Dark Matter Models from a Combined Analysis of Milky Way Satellites with the Fermi Large Area Telescope [J].

Ackermann, M. ;

Ajello, M. ;

Albert, A. ;

Atwood, W. B. ;

Baldini, L. ;

Ballet, J. ;

Barbiellini, G. ;

Bastieri, D. ;

Bechtol, K. ;

Bellazzini, R. ;

Berenji, B. ;

Blandford, R. D. ;

Bloom, E. D. ;

Bonamente, E. ;

Borgland, A. W. ;

Bregeon, J. ;

Brigida, M. ;

Bruel, P. ;

Buehler, R. ;

Burnett, T. H. ;

Buson, S. ;

Caliandro, G. A. ;

Cameron, R. A. ;

Canadas, B. ;

Caraveo, P. A. ;

Casandjian, J. M. ;

Cecchi, C. ;

Charles, E. ;

Chekhtman, A. ;

Chiang, J. ;

Ciprini, S. ;

Claus, R. ;

Cohen-Tanugi, J. ;

Conrad, J. ;

Cutini, S. ;

de Angelis, A. ;

de Palma, F. ;

Dermer, C. D. ;

Digel, S. W. ;

do Couto e Silva, E. ;

Drell, P. S. ;

Drlica-Wagner, A. ;

Falletti, L. ;

Favuzzi, C. ;

Fegan, S. J. ;

Ferrara, E. C. ;

Fukazawa, Y. ;

Funk, S. ;

Fusco, P. ;

Gargano, F. .

PHYSICAL REVIEW LETTERS, 2011, 107 (24)

[6] THE LUMINOSITY FUNCTION OF FERMI-DETECTED FLAT-SPECTRUM RADIO QUASARS [J].

Ajello, M. ;

Shaw, M. S. ;

Romani, R. W. ;

Dermer, C. D. ;

Costamante, L. ;

King, O. G. ;

Max-Moerbeck, W. ;

Readhead, A. ;

Reimer, A. ;

Richards, J. L. ;

Stevenson, M. .

ASTROPHYSICAL JOURNAL, 2012, 751 (02)

[7] Anisotropy of the cosmic gamma-ray background from dark matter annihilation [J].

Ando, S ;

Komatsu, E .

PHYSICAL REVIEW D, 2006, 73 (02)

[8] Can dark matter annihilation dominate the extragalactic gamma-ray background? [J].

Ando, S .

PHYSICAL REVIEW LETTERS, 2005, 94 (17)

[9] Dark matter annihilation or unresolved astrophysical sources? Anisotropy probe of the origin of the cosmic gamma-ray background [J].

Ando, Shin'ichiro ;

Komatsu, Eiichiro ;

Narumoto, Takuro ;

Totani, Tomonori .

PHYSICAL REVIEW D, 2007, 75 (06)

[10] Angular power spectrum of gamma-ray sources for GLAST:: blazars and clusters of galaxies [J].

Ando, Shin'ichiro ;

Komatsu, Eiichiro ;

Narumoto, Takuro ;

Totani, Tomonori .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2007, 376 (04) :1635-1647

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