论文标题
GRB 190829a-二进制晚期进化的展示
GRB 190829A -- A Showcase of Binary Late Evolution
论文作者
论文摘要
GRB 190829a是迄今为止第四位最接近的伽马射线爆发（GRB）（$ z = 0.0785 $）。由于其广泛的无线电，光学，X射线和H.E.S.S.的高能观测（VHE）观察到，它已成为由各种具有互补方法的模型检查的重要新来源。我们在这里在GRB 190829a中显示了双提出的脉冲，而三型波长的余气与II型二进制二进制驱动的Hypernova（BDHN II）模型一致。祖细胞是由二元组成的二进制，由碳氧（CO）星和中子星（NS）伴侣组成。 Co Star的铁芯的引力崩溃产生了超新星（SN）爆炸，并在其中心留下了新的Neutron Star（$ν$ ns）。通过物质后备向NSS旋转并产生双峰迅速发射，将Sn弹射器的积聚在NS伴侣上，并在$ν$ ns上。从迅速旋转的$ν$ ns的能量注入及其随后旋转的能量注入的能量注入会导致无线电，光学和X射线的余辉。我们对BDHNE中的物理和相关辐射过程的序列进行建模，并专注于对扮演相关角色的二进制属性进行个性化。
GRB 190829A is the fourth closest gamma-ray burst (GRB) to date ($z=0.0785$). Owing to its wide range of radio, optical, X-ray, and the very-high-energy (VHE) observations by H.E.S.S., it has become an essential new source examined by various models with complementary approaches. We here show in GRB 190829A the double-prompt pulses and the three-multiwavelength afterglows are consistent with the type II binary-driven hypernova (BdHN II) model. The progenitor is a binary composed of a carbon-oxygen (CO) star and a neutron star (NS) companion. The gravitational collapse of the iron core of the CO star produces a supernova (SN) explosion and leaves behind a new neutron star ($ν$NS) at its center. The accretion of the SN ejecta onto the NS companion and onto the $ν$NS via matter fallback spins up the NSs and produces the double-peak prompt emission. The synchrotron emission from the expanding SN ejecta with the energy injection from the rapidly spinning $ν$NS and its subsequently spin-down leads to the afterglow in the radio, optical, and X-ray. We model the sequence of physical and related radiation processes in BdHNe and focus on individuating the binary properties that play the relevant roles.
