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Searching for gamma-ray emission from Reticulum II by Fermi-LAT
Zhao Y(赵熠); Bi XJ(毕效军); Yin PF(殷鹏飞); Zhang XM(张新民); Zhao, Y; Bi, XJ; Yin, PF; Zhang, XM
2018
Source PublicationCHINESE PHYSICS C
ISSN1674-1137
EISSN2058-6132
Volume42Issue:2Pages:25102
SubtypeArticle
AbstractRecently, many new dwarf spheroidal satellites (dSphs) have been discovered by the Dark Energy Survey (DES). These dSphs are ideal candidates for probing for gamma-ray emissions from dark matter (DM) annihilation. However, no significant signature has been found by the Fermi-LAT dSph observations. In this work, we reanalyze the Fermi-LAT Pass 8 data from the direction of Reticulum II, where a slight excess has been reported by some previous studies. We treat Reticulum II (DES J0335.6-5403) as a spatially extended source, and find that no significant gamma-ray signature is observed. Based on this result, we set upper-limits on the DM annihilation cross section.
Keyworddark matter gamma ray dwarf galaxy
DOI10.1088/1674-1137/42/2/025102
WOS KeywordLARGE-AREA TELESCOPE ; ANNIHILATING DARK-MATTER ; DWARF GALAXIES ; MILKY-WAY ; CONFIDENCE-INTERVALS ; LOCAL GROUP ; CONSTRAINTS ; CANDIDATES ; SIGNAL ; HALO
Indexed BySCI
Language英语
WOS Research AreaPhysics
WOS SubjectPhysics, Nuclear ; Physics, Particles & Fields
WOS IDWOS:000427537400017
CSCD IDCSCD:6159789
ADS Bibcode2018ChPhC..42b5102Z
AXRIV CODE1702
inspireid1514007
Citation statistics
Cited Times:9 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/285737
Collection理论物理室
粒子天体物理中心
Corresponding AuthorZhao Y(赵熠)
Affiliation中国科学院高能物理研究所
First Author AffilicationInstitute of High Energy
Corresponding Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
Zhao Y,Bi XJ,Yin PF,et al. Searching for gamma-ray emission from Reticulum II by Fermi-LAT[J]. CHINESE PHYSICS C,2018,42(2):25102.
APA 赵熠.,毕效军.,殷鹏飞.,张新民.,Zhao, Y.,...&Zhang, XM.(2018).Searching for gamma-ray emission from Reticulum II by Fermi-LAT.CHINESE PHYSICS C,42(2),25102.
MLA 赵熠,et al."Searching for gamma-ray emission from Reticulum II by Fermi-LAT".CHINESE PHYSICS C 42.2(2018):25102.
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