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Philosophical transactions. Series A, Mathematical, physical, and engineering sciences. 2025 Apr 10;383(2294):20240122. doi: 10.1098/rsta.2024.0122 Q24.32024

Gravitational lensing in gamma-ray bursts

伽玛射线暴中的引力透镜效应 翻译改进

Andrew J Levan  1  2, Benjamin P Gompertz  3, Graham P Smith  3  4, Maria Edvige Ravasio  1, Gavin Lamb  5, Nial R Tanvir  6

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作者单位

  • 1 Department of Astrophysics/IMAPP, Radboud University Nijmegen, Nijmegen, The Netherlands.
  • 2 Department of Physics, University of Warwick, Coventry CV4 7AL, UK.
  • 3 School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT, UK.
  • 4 Department of Astrophysics, University of Vienna, Turkenschanzstrasse 17, Vienna 1180, Austria.
  • 5 Astrophysics Research Institute, Liverpool John Moores University, IC2 Liverpool Science Park, Liverpool L3 5RF, UK.
  • 6 Department of Physics and Astronomy, University of Leicester, University Road, Leicester LE1 7RH, UK.
  • DOI: 10.1098/rsta.2024.0122 PMID: 40205865

    摘要 中英对照阅读

    Gravitationally lensed gamma-ray bursts (GRBs) offer critical advantages over other lensed sources. They can be detected via continuously operating detectors covering most of the sky. They offer extremely high time resolution to determine lensing delays and find short time delays accurately. They are detectable across most of the visible Universe. However, they are also rare and frequently poorly localized. In this article, we review searches for gravitational lensing in GRBs and comment on promising avenues for the future. We note that the highly structured jets in GRBs can show variations on sufficiently small scales that, unlike lensing of most transient sources, gravitational lensing in GRBs may not be achromatic. Such behaviour would weaken the stringent requirements for identifying lensed bursts but would also make robust identification of lensing more challenging. A continuously running search that could identify candidate lensed events in near real-time would enable afterglow searches with current and near-future wide-field optical/infrared surveys that could yield the first unambiguous detection of a lensed GRB. The new generation of sensitive X-ray and γ-ray detectors, such as the Einstein Probe and SVOM, will complement Swift and significantly enhance the number of well-localized γ-ray and X-ray transients. Tuned strategies could dramatically improve the probability of observing a lensed GRB.This article is part of the Theo Murphy meeting issue 'Multi-messenger gravitational lensing (Part 1)'.

    Keywords: gamma-ray bursts; gravitational lensing; multi-messenger astronomy.

    Keywords:gravitational lensing; gamma-ray bursts

    引力透镜效应下的伽马射线暴(GRBs)相比其他透镜化的源提供了关键的优势。它们可以通过覆盖大部分天空的连续运行探测器被检测到。它们提供极高的时间分辨率,以确定透镜延时并准确地找到短时间段延迟。它们可以跨越可见宇宙的绝大部分范围进行观测。然而,它们也相对罕见,并且经常定位不精确。在本文中,我们回顾了对GRBs中的引力透镜效应的搜索,并对未来有前景的研究方向进行了评论。我们注意到,GRBs中高度结构化的喷流可能表现出足够的小尺度变化,使得与大多数瞬变源不同,在GRBs中的引力透镜效应可能不是无色差(即不具有相同的光谱特征)。这种行为将削弱识别透镜化暴发的严格要求,但也会使稳健地识别透镜化现象更具挑战性。一个连续运行的搜索系统可以在接近实时的情况下确定候选透镜事件,这将能够利用现有的和即将到来的宽视场光学/红外巡天进行余晖搜寻,并可能首次明确检测到透镜化的GRB。下一代灵敏的X射线和γ射线探测器,如爱因斯坦探针和SVOM,将与Swift一起工作,并显著提高γ射线和X射线瞬变事件的精确定位数量。经过调整的战略可以极大地提高观测到透镜化GRB的概率。本文是“多信使引力透镜效应(第一部分)”专题会议的一部分。

    关键词:
    伽马射线暴;引力透镜效应;多信使天文学。


    关键词:引力透镜效应; 伽玛射线暴

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    Copyright © Philosophical transactions. Series A, Mathematical, physical, and engineering sciences. 中文内容为AI机器翻译,仅供参考!

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    期刊名:Philosophical transactions of the royal society a-mathematical physical and engineering sciences

    缩写:PHILOS T R SOC A

    ISSN:1364-503X

    e-ISSN:1471-2962

    IF/分区:4.3/Q2

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