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Gamma Ray Burst afterglow and prompt-afterglow relations: An overview
New Astronomy Reviews ( IF 6 ) Pub Date : 2017-04-01 , DOI: 10.1016/j.newar.2017.04.001
M.G. Dainotti , R. Del Vecchio

Abstract The mechanism responsible for the afterglow emission of Gamma Ray Bursts (GRBs) and its connection to the prompt γ-ray emission is still a debated issue. Relations between intrinsic properties of the prompt or afterglow emission can help to discriminate between plausible theoretical models of GRB production. Here we present an overview of the afterglow and prompt-afterglow two parameter relations, their physical interpretations, their use as redshift estimators and as possible cosmological tools. A similar task has already been correctly achieved for Supernovae (SNe) Ia by using the peak magnitude-stretch relation, known in the literature as the Phillips relation (Phillips 1993). The challenge today is to make GRBs, which are amongst the farthest objects ever observed, standardizable candles as the SNe Ia through well established and robust relations. Thus, the study of relations amongst the observable and physical properties of GRBs is highly relevant together with selection biases in their physical quantities. Therefore, we describe the state of the art of the existing GRB relations, their possible and debated interpretations in view of the current theoretical models and how relations are corrected for selection biases. We conclude that only after an appropriate evaluation and correction for selection effects can GRB relations be used to discriminate among the theoretical models responsible for the prompt and afterglow emission and to estimate cosmological parameters.

中文翻译:

Gamma Ray Burst 余辉和瞬发余辉关系:概述

摘要 伽马射线暴(GRBs)余辉发射的机制及其与瞬发γ射线发射的联系仍然是一个有争议的问题。瞬发或余辉发射的内在特性之间的关系有助于区分 GRB 产生的合理理论模型。在这里,我们概述了余辉和瞬发余辉这两个参数关系、它们的物理解释、它们作为红移估计器的用途以及可能的宇宙学工具。通过使用峰值幅度-拉伸关系(在文献中称为菲利普斯关系(Phillips 1993)),超新星 (SNe) Ia 已经正确完成了类似的任务。今天的挑战是制造伽玛暴,这是有史以来观测到的最远天体之一,标准化的蜡烛作为 SNe Ia 通过建立和强大的关系。因此,研究伽玛暴的可观测特性和物理特性之间的关系与其物理量的选择偏差高度相关。因此,我们描述了现有 GRB 关系的最新技术,鉴于当前的理论模型,它们可能和有争议的解释以及如何针对选择偏差校正关系。我们的结论是,只有在对选择效应进行适当的评估和修正后,才能使用 GRB 关系来区分负责瞬发和余辉发射的理论模型,并估计宇宙学参数。GRB 的可观测和物理特性之间关系的研究与其物理量的选择偏差高度相关。因此,我们描述了现有 GRB 关系的最新技术,鉴于当前的理论模型,它们可能和有争议的解释以及如何针对选择偏差校正关系。我们的结论是,只有在对选择效应进行适当的评估和修正后,才能使用 GRB 关系来区分负责瞬发和余辉发射的理论模型,并估计宇宙学参数。GRB 的可观测和物理特性之间关系的研究与其物理量的选择偏差高度相关。因此,我们描述了现有 GRB 关系的最新技术,鉴于当前的理论模型,它们可能和有争议的解释以及如何针对选择偏差校正关系。我们的结论是,只有在对选择效应进行适当的评估和修正后,才能使用 GRB 关系来区分负责瞬发和余辉发射的理论模型,并估计宇宙学参数。鉴于当前的理论模型以及如何纠正选择偏差的关系,他们可能的和有争议的解释。我们的结论是,只有在对选择效应进行适当的评估和修正后,才能使用 GRB 关系来区分负责瞬发和余辉发射的理论模型,并估计宇宙学参数。鉴于当前的理论模型以及如何纠正选择偏差的关系,他们可能的和有争议的解释。我们的结论是,只有在对选择效应进行适当的评估和修正后,才能使用 GRB 关系来区分负责瞬发和余辉发射的理论模型,并估计宇宙学参数。
更新日期:2017-04-01
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