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Search for the gamma-ray emission from M33 with the Fermi Large Area Telescope
Fu, L.1; Xia, Z. Q.1,2; Shen, Z. Q.1,3
2017-10-01
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
Volume471Issue:2Pages:1737-1742
Corresponding AuthorFu, L.(leifu@pmo.ac.cn)
AbstractWe searched for the gamma-ray signal from M33, one of the largest galaxies in the Local Group, using the Pass8 data from the Fermi Large Area Telescope (LAT). No statistically significant gamma-ray emission has been detected in the direction of M33, and we report a new upper limit of the high-energy (>100 MeV) photon flux of 2.3 x 10(-9) ph cm(-2) s(-1), which is stricter than previous constraints and implies a cosmic ray density for M33 that is lower than that suggested previously. The current limit is still, however, in agreement with the correlation of star formation rate and gamma-ray luminosity inferred from the Local group galaxies and a few nearby starburst galaxies.
Keywordgalaxies: individual: M33 gamma rays: galaxies
DOI10.1093/mnras/stx929
WOS KeywordLARGE-MAGELLANIC-CLOUD ; LOCAL GROUP GALAXIES ; STAR-FORMATION ; MOLECULAR GAS ; EGRET OBSERVATIONS ; NEUTRAL HYDROGEN ; SPACE-TELESCOPE ; COSMIC-RAYS ; H-I ; DISTANCE
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000409022700029
PublisherOXFORD UNIV PRESS
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Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/22668
Collection中国科学院紫金山天文台
Corresponding AuthorFu, L.
Affiliation1.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210008, Jiangsu, Peoples R China
2.Univ Sci & Technol China, Sch Phys, Hefei 230026, Anhui, Peoples R China
3.Univ Chinese Acad Sci, Yuquan Rd 19, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Fu, L.,Xia, Z. Q.,Shen, Z. Q.. Search for the gamma-ray emission from M33 with the Fermi Large Area Telescope[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2017,471(2):1737-1742.
APA Fu, L.,Xia, Z. Q.,&Shen, Z. Q..(2017).Search for the gamma-ray emission from M33 with the Fermi Large Area Telescope.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,471(2),1737-1742.
MLA Fu, L.,et al."Search for the gamma-ray emission from M33 with the Fermi Large Area Telescope".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 471.2(2017):1737-1742.
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