Gamma-Ray Burst Afterglow with Continuous Energy Injection: Signature of a Highly Magnetized Millisecond Pulsar
Gamma-Ray Burst Afterglow with Continuous Energy Injection: Signature of a Highly Magnetized Millisecond Pulsar
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DOI：
10.1086/320255
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发表时间：
2000-11
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影响因子：
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通讯作者：
Bing Zhang;P. Mészáros
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作者：
Bing Zhang;P. Mészáros
我们调查的后果，连续注入中央引擎的伽玛射线暴余辉发射，更具体地集中在一个高度磁化毫秒脉冲星引擎。对于初始脉冲星参数在一定区域内的参数空间，余辉光变曲线预测显示出独特的消色差凹凸功能，其发病时间和持续时间的范围从几分钟到几个月，这取决于脉冲星和火球参数。此类特征的检测或上限将对爆发祖源和类磁星中央发动机模型提供约束。象GRB 000301 C余辉中的消色差隆起可能是由P0 = 3.4ms，Bp = 2.7 × 10 ~（14）G的毫秒脉冲星引起的。
We investigate the consequences of a continuously injecting central engine on the gamma-ray burst afterglow emission, focusing more specifically on a highly magnetized millisecond pulsar engine. For initial pulsar parameters within a certain region of the parameter space, the afterglow light curves are predicted to show a distinctive achromatic bump feature, the onset and duration of which range from minutes to months, depending on the pulsar and the fireball parameters. The detection of, or upper limits on, such features would provide constraints on the burst progenitor and on magnetar-like central engine models. An achromatic bump such as that in the GRB 000301C afterglow may be caused by a millisecond pulsar with P0 = 3.4 ms and Bp = 2.7 × 1014 G.