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北美退伍军人节(Veterans Day),12 日无更新
arXiv 1802.01684astro-ph.IM
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GRB Cosmography与THESEUS

GRB Cosmography with THESEUS

L. Izzo, M. Muccino, M. Della Valle

摘要:

伽马射线暴可以作为距离指示器使用组合关系。我们将展示拟议中的THESEUS任务将如何使我们能够用GRBs研究高红移宇宙的演化历史。假设THESEUS将测量800个GRB的红移,我们证明了主要宇宙学模型的宇宙学参数的精度将大大提高,从而我们可以将GRB作为额外的和独立的宇宙学探针,并对暗能量状态方程参数$w(z)$的演化施加强有力的约束。

英文摘要:

Gamma-ray Bursts can be used as distance indicators using the Combo relation. We show how the proposed THESEUS mission will allow us to investigate the evolution history of the Universe at high redshift with GRBs. Assuming that THESEUS will measure the redshift for 800 GRBs, we show that the accuracy on the cosmological parameters of the main cosmological models will greatly improve, so that we can use GRBs as additional and independent cosmological probes and also put strong constraints on the evolution of the dark energy equation of state parameter $w(z)$.

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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