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arXiv 0802.2578astro-ph
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伽马射线暴,新的宇宙学信标

Gamma-Ray Bursts, new cosmological beacons

V. Avila-Reese, C. Firmani, G. Ghisellini, J. I. Cabrera

摘要:

长伽马射线暴(GRB)是宇宙中最明亮的电磁爆炸,与大质量恒星的死亡有关。因此,伽玛暴是宇宙大质量恒星形成、金属丰度和初始质量函数演化的潜在示踪剂。伽玛暴也被证明是吸引人的宇宙学距离指标。这为将宇宙膨胀历史限制在红移5-6提供了一个独特的机会。本文对这两个问题作了简要回顾。

英文摘要:

Long Gamma-Ray Bursts (GRBs) are the brightest electromagnetic explosions in the Universe, associated to the death of massive stars. As such, GRBs are potential tracers of the evolution of the cosmic massive star formation, metallicity, and Initial Mass Function. GRBs also proved to be appealing cosmological distance indicators. This opens a unique opportunity to constrain the cosmic expansion history up to redshifts 5-6. A brief review on both subjects is presented here.

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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