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首页> 外文期刊>PASJ: Publications of the Astronomical Society of Japan >Testing two-component jet models of GRBs with orphan afterglows
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Testing two-component jet models of GRBs with orphan afterglows

机译：用孤残光测试GRB的两组分喷射模型

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In the Swift era, two-component jet models were introduced to explain the complex temporal profiles and the diversity of early afterglows. In this paper, we concentrate on the two-component jet model: the first component is the conventional afterglow, and second is emission due to late internal dissipation, such as late-prompt emission. We suggest herein that the two-component jet model can be probed by the existence of two optical peaks for orphan GRB afterglows. Each peak is caused by its respective jet as its relativistic beaming cone widens to encompass the off-axis line of sight. Typically, the first peak appears at 10~4-10~5 s, and the second at 10 ~5-10~6 s. Furthermore, we expect to observe a single, bright X-ray peak at the same time as the first optical peak. Because orphan afterglows do not have prompt emission, it is necessary to monitor the entire sky every 10~4 s in the X-ray regime. We can test the model with orphan afterglows through the X-ray all-sky survey collaboration, and by using ground-based optical telescopes.
机译：在斯威夫特时代，引入了两种成分的射流模型来解释复杂的时间剖面和早期余辉的多样性。在本文中，我们集中在两组分射流模型上：第一个组分是常规余辉，第二个组分是由于内部内部耗散（例如后期提示排放）而产生的排放。我们在此建议，可以通过孤儿GRB余辉的两个光学峰的存在来探究两组分喷射模型。每个峰值是由其各自的射流引起的，因为其相对论的波束锥变宽以包含离轴的视线。通常，第一个峰值出现在10〜4-10〜5 s，第二个峰值出现在10〜5-10〜6 s。此外，我们希望在与第一个光学峰同时观察到一个明亮的X射线峰。由于孤儿余辉没有及时发射，因此有必要在X射线状态下每10到4 s监视整个天空。我们可以通过X射线全天候测量协作以及使用地面光学望远镜对孤儿残光进行模型测试。

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