Pair-Instability Explosions: observational evidence

被引：1

作者：

Gal-Yam, Avishay ^{[1
]}

机构：

[1] Weizmann Inst Sci, Dept Particle Phys & Astrophys, IL-76100 Rehovot, Israel

来源：

DEATH OF MASSIVE STARS: SUPERNOVAE AND GAMMA-RAY BURSTS | 2012年 / 279期

关键词：

CORE-COLLAPSE SUPERNOVAE; GAMMA-RAY BURSTS; DWARF GALAXIES; SEARCH; 2007BI; RATES; PROGENITORS; POPULATION; EVOLUTION; REDSHIFT;

D O I：

10.1017/S1743921312013014

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

It has been theoretically predicted many decades ago that extremely massive stars that develop large oxygen cores will become dynamically unstable, due to electron-positron pair production. The collapse of such oxygen cores leads to powerful thermonuclear explosions that unbind the star and can produce, in some cases, many solar masses of radioactive Ni-56. For many years, no examples of this process were observed in nature. Here, I briefly review recent observations of luminous supernovae that likely result from pair-instability explosions, in the nearby and distant Universe.

引用

页码：253 / 260

页数：8

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