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旋转射电暂现源研究进展

龚奥博 闫振 沈志强 吴理歌

天文学进展2015,Vol.33Issue(4):472-488,17.
天文学进展2015,Vol.33Issue(4):472-488,17.DOI:10.3969/j.issn.1000-8349.2015.04.05

旋转射电暂现源研究进展

Research Progress of Rotating Radio Transients

龚奥博 1闫振 2沈志强 2吴理歌2

作者信息

  • 1. 北京师范大学 天文系,北京 100875
  • 2. 中国科学院 上海天文台,上海 200030
  • 折叠

摘要

Abstract

Rotating Radio Transients (RRATs) are a set of special astronomical objects discovered by McLaughlin et al.(2006) during the reprocessing of the data from Parkes Multibeam Pulsar Survey with single pulse searching method. RRATs are quiescent most of the time. They only sporadically emit pulses with the order of milliseconds. Long-term observations on these objects reveal that their pulse timing property is similar to canonical pulsars. However, the relationship between these objects and canonical pulsars is so far still not clear. In this paper, we give a review about the research progress of multi-band (radio as well as other bands) observations on RRAT, and the related RRAT emission mechanism models. At radio band, this paper will mainly introduce techniques of identifying RRAT signals (such as ZERO-DM filter, DM searching, thresholding, matched filtering and diagnosing), pulse timing and polarization observation results. In addition, this paper will summarize the observational results in X-ray, optical and near-infrared bands. Apart from these, the related RRAT emission mechanism models will be introduced, including the distant pulsar model, mutual effects between the pulsar magnetosphere and material model, the emission from the pulsar magnetosphere model etc. Finally, a summary and prospects on RRAT studies will be given in the last part of this paper.

关键词

旋转射电暂现源/脉冲到达时间/辐射机制

Key words

RRAT/pulse arrival time/emission mechanism model

分类

天文与地球科学

引用本文复制引用

龚奥博,闫振,沈志强,吴理歌..旋转射电暂现源研究进展[J].天文学进展,2015,33(4):472-488,17.

基金项目

国家自然科学基金(11173046,11403073),上海市自然科学基金(13ZR1464500) (11173046,11403073)

天文学进展

OA北大核心CSCDCSTPCD

1000-8349

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