Challenges in explaining the Galactic Center gamma-ray excess with millisecond pulsars

被引：89

作者：

Cholis, Ilias ^{[1
]}

Hooper, Dan ^{[1
,2
]}

Linden, Tim ^{[2
]}

机构：

[1] Fermilab Natl Accelerator Lab, Ctr Particle Astrophys, POB 500, Batavia, IL 60510 USA

[2] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2015年 / 06期

基金：

美国国家科学基金会; 美国国家航空航天局;

关键词：

millisecond pulsars; gamma ray theory; LARGE-AREA TELESCOPE; DARK-MATTER; FERMI; BINARIES; MODELS;

D O I：

10.1088/1475-7516/2015/06/043

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Millisecond pulsars have been discussed as a possible source of the gamma-ray excess observed from the region surrounding the Galactic Center. With this in mind, we use the observed population of bright low-mass X-ray binaries to estimate the number of millisecond pulsars in the Inner Galaxy. This calculation suggests that only similar to 1-5% of the excess is produced by millisecond pulsars. We also use the luminosity function derived from local measurements of millisecond pulsars, along with the number of point sources resolved by Fermi, to calculate an upper limit for the diffuse emission from such a population. While this limit is compatible with the millisecond pulsar population implied by the number of low-mass X-ray binaries, it strongly excludes the possibility that most of the excess originates from such objects.

引用

页数：12

共 67 条

[1] Astrophysical and dark matter interpretations of extended gamma-ray emission from the Galactic Center [J].

Abazajian, Kevork N. ;

Canac, Nicolas ;

Horiuchi, Shunsaku ;

Kaplinghat, Manoj .

PHYSICAL REVIEW D, 2014, 90 (02)

[2] Detection of a gamma-ray source in the Galactic Center consistent with extended emission from dark matter annihilation and concentrated astrophysical emission [J].

Abazajian, Kevork N. ;

Kaplinghat, Manoj .

PHYSICAL REVIEW D, 2012, 86 (08)

[3] The consistency of Fermi-LAT observations of the galactic center with a millisecond pulsar population in the central stellar cluster [J].

Abazajian, Kevork N. .

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2011, (03)

[4] THE SECOND FERMI LARGE AREA TELESCOPE CATALOG OF GAMMA-RAY PULSARS [J].

Abdo, A. A. ;

Ajello, M. ;

Allafort, A. ;

Baldini, L. ;

Ballet, J. ;

Barbiellini, G. ;

Baring, M. G. ;

Bastieri, D. ;

Belfiore, A. ;

Bellazzini, R. ;

Bhattacharyya, B. ;

Bissaldi, E. ;

Bloom, E. D. ;

Bonamente, E. ;

Bottacini, E. ;

Brandt, T. J. ;

Bregeon, J. ;

Brigida, M. ;

Bruel, P. ;

Buehler, R. ;

Burgay, M. ;

Burnett, T. H. ;

Busetto, G. ;

Buson, S. ;

Caliandro, G. A. ;

Cameron, R. A. ;

Camilo, F. ;

Caraveo, P. A. ;

Casandjian, J. M. ;

Cecchi, C. ;

Celik, Oe . ;

Charles, E. ;

Chaty, S. ;

Chaves, R. C. G. ;

Chekhtman, A. ;

Chen, A. W. ;

Chiang, J. ;

Chiaro, G. ;

Ciprini, S. ;

Claus, R. ;

Cognard, I. ;

Cohen-Tanugi, J. ;

Cominsky, L. R. ;

Conrad, J. ;

Cutini, S. ;

D'Ammando, F. ;

De Angelis, A. ;

DeCesar, M. E. ;

De Luca, A. ;

Den Hartog, P. R. .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2013, 208 (02)

[5] A population of gamma-ray emitting globular clusters seen with the Fermi Large Area Telescope [J].

Abdo, A. A. ;

Ackermann, M. ;

Ajello, M. ;

Baldini, L. ;

Ballet, J. ;

Barbiellini, G. ;

Bastieri, D. ;

Bellazzini, R. ;

Blandford, R. D. ;

Bloom, E. D. ;

Bonamente, E. ;

Borgland, A. W. ;

Bouvier, A. ;

Brandt, T. J. ;

Bregeon, J. ;

Brigida, M. ;

Bruel, P. ;

Buehler, R. ;

Buson, S. ;

Caliandro, G. A. ;

Cameron, R. A. ;

Caraveo, P. A. ;

Carrigan, S. ;

Casandjian, J. M. ;

Charles, E. ;

Chaty, S. ;

Chekhtman, A. ;

Cheung, C. C. ;

Chiang, J. ;

Ciprini, S. ;

Claus, R. ;

Cohen-Tanugi, J. ;

Conrad, J. ;

DeCesar, M. E. ;

Dermer, C. D. ;

de Palma, F. ;

Digel, S. W. ;

do Couto e Silva, E. ;

Drell, P. S. ;

Dubois, R. ;

Dumora, D. ;

Favuzzi, C. ;

Fortin, P. ;

Frailis, M. ;

Fukazawa, Y. ;

Fusco, P. ;

Gargano, F. ;

Gasparrini, D. ;

Gehrels, N. ;

Germani, S. .

ASTRONOMY & ASTROPHYSICS, 2010, 524

[6] Hidden on-shell mediators for the Galactic Center γ-ray excess [J].

Abdullah, Mohammad ;

DiFranzo, Anthony ;

Rajaraman, Arvind ;

Tait, Tim M. P. ;

Tanedo, Philip ;

Wijangco, Alexander M. .

PHYSICAL REVIEW D, 2014, 90 (03)

[7] Flavored dark matter and the Galactic Center gamma-ray excess [J].

Agrawal, Prateek ;

Batell, Brian ;

Hooper, Dan ;

Lin, Tongyan .

PHYSICAL REVIEW D, 2014, 90 (06)

[8] Effective field theory approach to the Galactic Center gamma-ray excess [J].

Alves, Alexandre ;

Profumo, Stefano ;

Queiroz, Farinaldo S. ;

Shepherd, William .

PHYSICAL REVIEW D, 2014, 90 (11)

[9] W-WIMP annihilation as a source of the Fermi bubbles [J].

Anchordoqui, Luis Alfredo ;

Vlcek, Brian James .

PHYSICAL REVIEW D, 2013, 88 (04)

[10] Dark Matter with Pseudoscalar-Mediated Interactions Explains the DAMA Signal and the Galactic Center Excess [J].

Arina, Chiara ;

Del Nobile, Eugenio ;

Panci, Paolo .

PHYSICAL REVIEW LETTERS, 2015, 114 (01)

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