摘要
伽玛暴是一种短时标的高能光子爆发现象．通常把持续时间短于-28的暴称为短暴，长于-2s的暴称为长暴．大量观测已经证实，长暴起源于大质量恒星的塌缩，因而与超新星成协．短暴最可能的起源是致密双星并合．目前，伽玛暴研究的一个核心问题是确定其中心引擎究竟为黑洞还是中子星．本文第1章详细阐述了相关进展．
The durations of GRBs （gamma-ray bursts） have a bimodal distribution with short- duration GRBs （SGRBs） lasting for less than -2 s and long-duration GRBs （LGRBs） greater than -2 s. A large number of observations indicate that LGRBs originate from the collapses of massive stars and are therefore associated with supernovae （SNe）. SGRBs, on the other hand, are believed to be the results of binary compact object mergers. Now the study of GRBs has progressed to the stage of identifing the nature of central engines, i.e., black holes or millisecond magnetars. We elaborate the progress in Chapter 1.
出处
《天文学报》
CSCD
北大核心
2017年第3期125-126,共2页
Acta Astronomica Sinica
