Search for the gamma-ray emission from M33 with the Fermi Large Area Telescope

	Search for the gamma-ray emission from M33 with the Fermi Large Area Telescope
	Fu, L.; Xia, Z. Q.; Shen, Z. Q.
刊名	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
	2017
卷号	471 期号:2 页码:1737-1742
英文摘要	We 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.
语种	英语
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/17409]
专题	中国科学院紫金山天文台
推荐引用方式 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.