Gamma-Ray Bursts as Manifestation of Collisions of Primordial Black Holes with Stars
Gamma-Ray Bursts as Manifestation of Collisions of Primordial Black Holes with Stars
复制标题
伽马射线暴是原始黑洞与恒星碰撞的表现
DOI：
--
复制
发表时间：
2007
期刊：
影响因子：
--
通讯作者：
B. Zhilyaev
中科院分区：
文献类型：
--
作者：
B. Zhilyaev
使用BATSE调查数据，我发现编号为37个源的grb中相当小的一部分似乎在20到300 keV的范围内发出类似热轫致辐射。我认为这些爆发可能是由于恒星与原始黑洞（PBH）的碰撞而产生的。这些物体是早期宇宙中热物质的遗迹。恒星附近的PBH可能是在恒星从星际云形成过程中合并过程的结果。目前，它们可以在恒星周围形成引力捕获的光晕，就像太阳彗星家族一样。彗星范式已被用于理解PBH的各个方面。彗星与太阳和行星的碰撞是太阳系历史上的普通事件。以此类推，我们可以支持这样一种观点，即PBH与母星的碰撞在其历史上也可能是相当频繁的事件。当与恒星碰撞时，pbh是驱动伽马射线爆发的引擎。进入恒星大气层后，PBH会因吸积而产生伽马射线暴，持续时间从十分之一秒到几秒不等。它可以表现出一些grb的主要定性特征。据估计，它们的质量在太阳质量的千分之一到百分之一之间。我发现这些爆发源是各向同性地分布在天空中，距离高达50ps。在这种情况下，人们可能会认为一些短伽马射线暴是宇宙中原始黑洞的可观测特征。
Using the BATSE survey data I find that quite small fraction of GRBs numbering 37 sources seems to emit the radiation similar to thermal bremsstrahlung in the range 20 to 300 keV. I suggest that these bursts may perhaps occur from collision of stars with primordial black holes (PBH). These objects are relic of a hot matter in the early Universe. PBH in the vicinity of stars may be found in consequence of incorporation processes during the formation of stars from interstellar clouds. At present they can form the gravitationally captured haloes around stars like the family of solar comets. The comet paradigm has been used to understand various aspects of PBH. Comet collisions with the Sun and planets are ordinary events in solar system history. On the analogy, one can support the view that PBH collisions with the parent star may be quite frequent events in its history, too. PBHs are the engines driving gamma-ray bursts when collide with the stars. Entering a stellar atmosphere, PBH is supposed to produce the gamma-ray burst due to accretion with duration from a few tenths of second to a few seconds. It can exhibit the main qualitative features of some GRBs. Their masses are estimated in the range from thousandths to hundredths of the solar mass. I found that these burst sources are isotropically distributed on the sky and are seen from a distance up to 50 ps. In this context one may expect that some short GRBs are observable signatures of primordial black holes in the Universe.