IHEP OpenIR
DARK MATTER SEARCHES IN THE GAMMA-RAY EXTRAGALACTIC BACKGROUND VIA CROSS-CORRELATIONS WITH GALAXY CATALOGS
Cuoco, A; Xia JQ(夏俊卿); Xia, JQ; Regis, M; Branchini, E; Fornengo, N; Viel, M
2015
Source PublicationASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
ISSN0067-0049
EISSN1538-4365
Volume221Issue:2Pages:29
SubtypeArticle
AbstractWe compare the measured angular cross-correlation between the Fermi-Large Area Telescope gamma-ray sky and catalogs of extragalactic objects with the expected signal induced by weakly interacting massive particle (WIMP) dark matter (DM). We include a detailed description of the contribution of astrophysical gamma-ray emitters such as blazars, misaligned active galactic nucleus (AGN), and star-forming galaxies, and perform a global fit to the measured cross-correlation. Five catalogs are considered: Sloan Digital Sky Survey (SDSS)-DR6 quasars, Two Micron All Sky Survey galaxies, NRAO VLA Sky Survey radio galaxies, SDSS-DR8 Luminous Red Galaxies, and the SDSS-DR8 main galaxy sample. To model the cross-correlation signal, we use the halo occupation distribution formalism to estimate the number of galaxies of a given catalog in DM halos and their spatial correlation properties. We discuss uncertainties in the predicted cross-correlation signal arising from the DM clustering and WIMP microscopic properties, which set the DM gamma-ray emission. The use of different catalogs probing objects at different redshifts significantly. reduces, though not completely, the degeneracy among the different.-ray components. We find that the presence of a significant WIMP DM signal is allowed by the data but not significantly preferred by the fit, although this is mainly due to a degeneracy with the misaligned AGN component. With modest substructure boost, the sensitivity of this method excludes thermal annihilation cross sections at 95% level for WIMP masses up to few tens of GeV. Constraining the low-redshift properties of astrophysical populations with future data will further improve the sensitivity to DM.
Keywordcosmology: observations cosmology: theory dark matter gamma-rays: diffuse backgrounds large-scale structure of universe
Subject AreaAstronomy & Astrophysics
DOI10.1088/0067-0049/221/2/29
Indexed BySCI ; INSPIREHEP ; ADS
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000366620900007
ADS Bibcode2015ApJS..221...29C
ADS URLhttps://ui.adsabs.harvard.edu/abs/2015ApJS..221...29C
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2015ApJS..221...29C/citations
inspireid1374455
inspireURLhttps://inspirehep.net/literature/1374455
Citation statistics
Cited Times:56 [INSPIRE]
Cited Times:54 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/228861
Collection中国科学院高能物理研究所
Recommended Citation
GB/T 7714
Cuoco, A,Xia JQ,Xia, JQ,et al. DARK MATTER SEARCHES IN THE GAMMA-RAY EXTRAGALACTIC BACKGROUND VIA CROSS-CORRELATIONS WITH GALAXY CATALOGS[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2015,221(2):29.
APA Cuoco, A.,夏俊卿.,Xia, JQ.,Regis, M.,Branchini, E.,...&Viel, M.(2015).DARK MATTER SEARCHES IN THE GAMMA-RAY EXTRAGALACTIC BACKGROUND VIA CROSS-CORRELATIONS WITH GALAXY CATALOGS.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,221(2),29.
MLA Cuoco, A,et al."DARK MATTER SEARCHES IN THE GAMMA-RAY EXTRAGALACTIC BACKGROUND VIA CROSS-CORRELATIONS WITH GALAXY CATALOGS".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 221.2(2015):29.
Files in This Item:
File Name/Size DocType Version Access License
833.pdf(2189KB)期刊论文作者接受稿开放获取CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Cuoco, A]'s Articles
[夏俊卿]'s Articles
[Xia, JQ]'s Articles
Baidu academic
Similar articles in Baidu academic
[Cuoco, A]'s Articles
[夏俊卿]'s Articles
[Xia, JQ]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Cuoco, A]'s Articles
[夏俊卿]'s Articles
[Xia, JQ]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.