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arXiv 0710.5302astro-ph
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Amati关系依赖于GRB宿主星系的亮度吗?

Does Amati Relation Depend on Luminosity of GRB's Host Galaxies?

Jing Wang, Jing-song Deng, Yu-lei Qiu

摘要:

为了检验Amati关系的系统性,我们将24个已确定$E_{γ,\mathrm{iso}}$和$E_{\mathrm p}$的长持续时间伽玛暴按其宿主星系的B带光度分为两个亚群。在不确定性范围内,两个子群的Amati关系是一致的。考虑到星系的光度-金属丰度关系已经建立得很好,本研究并不暗示伽玛暴的Amati关系与环境金属丰度之间存在强烈的演化关系。

英文摘要:

In order to test systematic of the Amati relation, the 24 long-duration GRBs with firmly determined $E_{γ,\mathrm{iso}}$ and $E_{\mathrm p}$ are separated into two sub-groups according to B-band luminosity of their host galaxies. The Amati relations in the two subgroups are found to be in agreement with each other within uncertainties. Taking into account of the well established luminosity - metallicity relation of galaxies, no strong evolution of the Amati relation with GRB's environment metallicity is implied in this study.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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