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arXiv 0901.4524astro-ph.HEastro-ph.CO
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XRF080109-SN2008D和GRB-Jet-SN十年的连接

The XRF080109-SN2008D and a decade of GRB-Jet-SN connection

D. Fargion, D. D'Armiento, P. Oliva, F. Manniti

摘要:

最近的GRB-XRF 080109是关于GRB性质的一个特殊教训。十年后(自2008年4月25日),我们知道超新星可能经常包含喷流。它的持续活动可能以伽玛暴的形式在轴上发光。这样一个持久的、细束的伽马喷流可能由BH(黑洞)或脉冲星提供动力。这些喷流的后期可能会使SN迹线松动,并表现为短GRB或长孤GRB(取决于喷流的角速度和视角)。X射线荧光光谱是从周边观察喷射流。这些进动和自旋的伽玛喷注是由超相对论电子在类星体或微类星体源上的逆康普顿和/或同步辐射产生的。这些喷流在超新星诞生时最强大,一旦在轴上,就向我们闪耀,闪烁着伽玛射线暴探测器。薄喷流的颤动自然地解释了所观察到的不同伽玛暴的不规则的多爆炸结构。喷流在几个小时的时间尺度上进动(通过双星伴星或内部盘不对称性)和功率衰减,但它们保持停留在观察者锥视图内只有几秒钟的持续时间(GRB);喷流在伽马波段更薄,在X波段更宽。这解释了更宽和更长的X射线伽玛射线暴余辉持续时间和罕见的X射线前体的存在。

英文摘要:

Last and nearest GRB-XRF 080109 has been an exceptional lesson on GRB nature. After a decade (since 25 April 08) we know that Supernovae may often contain a Jet. Its persistent activity may shine on axis as a GRBs. Such a persistent, thin beamed gamma jet may be powered by either a BH (Black Holes) or Pulsars. Late stages of these jets may loose the SN traces and appear as a short GRB or a long orphan GRB (depending on jet angular velocity and view angle). XRF are peripherical viewing of the jets. These precessing and spinning gamma jet are originated by Inverse Compton and-or Synchrotron Radiation at pulsars or micro-quasars sources, by ultra-relativistic electrons. These Jets are most powerful at Supernova birth, blazing, once on axis, to us and flashing GRB detector. The trembling of the thin jet explains naturally the observed erratic multi-explosive structure of different GRBs. The jets are precessing (by binary companion or inner disk asymmetry) and decaying by power on time scales of few hours, but they keep staying inside the observer cone view only a few seconds duration times (GRB); the jet is thinner in gamma and wider in X band. This explain the wider and longer X GRB afterglow duration and the rare presence of X-ray precursors.

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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