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?

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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. 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.

作者 Jing Wang Jing-Song Deng Yu-Lei Qiu

机构地区 National Astronomical Observatories

出处《Chinese Journal of Astronomy and Astrophysics》 CSCD 2008年第3期255-261,共7页 中国天文和天体物理学报（英文版）

基金 National Natural Science Foundation of China.

关键词 GAMMA-RAYS bursts -- gamma-rays observations -- galaxies evolution gamma-rays bursts -- gamma-rays observations -- galaxies evolution

分类号 P156 [天文地球—天文学]

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Chinese Journal of Astronomy and Astrophysics

2008年第3期

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Does the Amati Relation depend on the Luminosity of the GRB's Host Galaxy?

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