The Remnant of Neutron Star-White Dwarf Merger and the Repeating Fast Radio Bursts
文献类型：期刊论文
| 作者 | Liu, Xiang1,2
|
| 刊名 | International Journal of Astronomy and Astrophysics
 |
| 出版日期 | 2020-03-01 |
| 卷号 | 10期号:1页码:28-38 |
| 关键词 | Pulsar Neutron Star White Dwarf Merger Magnetic Field Magnetar Fast Radio Burst |
| ISSN号 | 2161-4717 |
| DOI | 10.4236/ijaa.2020.101003 |
| 产权排序 | 1 |
| 英文摘要 | Fast radio bursts (FRBs) at cosmological distances still hold concealed physical origins. Previously Liu (2018) proposes a scenario that the collision between a neutron star (NS) and a white dwarf (WD) can be one of the progenitors of non-repeating FRBs and notices that the repeating FRBs can also be explained if a magnetar formed after such NS-WD merger. In this paper, we investigate this channel of magnetar formation in more detail. We propose that the NS-WD post-merger, after cooling and angular momentum redistribution, may collapse to either a black hole or a new NS or even remains as a hybrid WDNS, depending on the total mass of the NS and WD. In particular, the newly formed NS can be a magnetar if the core of the WD collapsed into the NS while large quantities of degenerate electrons of the WD compressed to the outer layers of the new NS. A strong magnetic field can be formed by the electrons and positive charges with different angular velocities induced by the differential rotation of the newborn magnetar. Such a magnetar can power the repeating FRBs by the magnetic reconnections due to the crustal movements or starquakes. |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/4051]  |
| 专题 | 星系宇宙学研究团组 |
| 作者单位 | 1.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi, China; 2.Qiannan Normal University for Nationalities, Duyun, China |
| 推荐引用方式 GB/T 7714 | Liu, Xiang. The Remnant of Neutron Star-White Dwarf Merger and the Repeating Fast Radio Bursts[J]. International Journal of Astronomy and Astrophysics,2020,10(1):28-38. |
| APA | Liu, Xiang.(2020).The Remnant of Neutron Star-White Dwarf Merger and the Repeating Fast Radio Bursts.International Journal of Astronomy and Astrophysics,10(1),28-38. |
| MLA | Liu, Xiang."The Remnant of Neutron Star-White Dwarf Merger and the Repeating Fast Radio Bursts".International Journal of Astronomy and Astrophysics 10.1(2020):28-38. |
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