Does the Amati Relation depend on the Luminosity of the GRB's Host Galaxy?
Does the Amati Relation depend on the Luminosity of the GRB's Host Galaxy?作者机构:National Astronomical Observatories Chinese Academy of Sciences Beijing 100012 China
出 版 物:《Chinese Journal of Astronomy and Astrophysics》 (中国天文和天体物理学报(英文版))
年 卷 期:2008年第8卷第3期
页 面:255-261页
核心收录:
学科分类:0709[理学-地质学] 07[理学] 0708[理学-地球物理学] 070401[理学-天体物理] 0704[理学-天文学] 0825[工学-航空宇航科学与技术]
基 金:National Natural Science Foundation of China
主 题:gamma-rays bursts -- gamma-rays observations -- galaxies evolution
摘 要:In order to test the systematics of the Amati relation, 24 long-duration GRBs with available Eγ,iso and Ep are separated into two subgroups according to the B-band luminosity of their host galaxies. The Amati relations in the two subgroups are found to be in agreement with each other within the uncertainties. Taking into account of the well established luminosity - metallicity relation of galaxies, no strong evolution of the Amati relation with the GRB's environmental metaUicity is implied in this study.