Institutional Repository of Radio Astronomy Research Laboratory
| A model of neutron-star-white-dwarf collision for fast radio bursts | |
Liu, Xiang1,2
| |
| 2018-11-01 | |
| Source Publication | ASTROPHYSICS AND SPACE SCIENCE
 |
| ISSN | 0004-640X |
| Volume | 363Issue:11Pages:242 |
| Contribution Rank | 1 |
| Abstract | Fast radio bursts (FRBs) with unknown origin emit a huge luminosity (about 1Jy at 1GHz) with a duration of milliseconds or less at extragalactic distances estimated from their large dispersion measure (DM). We propose herein a scenario for a collision between a neutron star (NS) and a white dwarf (WD) as the progenitor of the FRBs by considering the burst duration scaling to the collision time and the radio luminosity proportional to the kinetic energy of the collision. The relations among the observed flux density, pulse width, and the DM are derived from the model and compared with the statistical results from the observed FRBs. Although the sample is quite small, we tentatively report a nearly inverse-square correlation between the observed peak flux density and the DM excess, which is an consequence of the assumption that the DM excess (i.e. that not due to our Galaxy) is dominated by the intergalactic medium. We also tentatively note a correlation among the duration of the FRB and the DM excess (possibly interpreted as due to the broadening of the signal in the intergalactic medium) and a correlation among the duration of the FRB and the flux density (shorter burst should be brighter), both roughly in agreement with the proposed model. |
| Keyword | Pulsars: general Radio continuum: general Scattering |
| DOI | 10.1007/s10509-018-3462-3 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | REIONIZATION HISTORY ; HOST GALAXY ; BINARY ; ORIGIN ; LOCALIZATION ; ENVIRONMENT ; DISPERSION ; MERGER |
| Funding Project | programme of the Light in China's Western Region[XBBS201324] ; 973 Program[2015CB857100] ; Key Laboratory of Radio Astronomy, Chinese Academy of Sciences ; National Natural Science Foundation of China[11273050] |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000448791300002 |
| Publisher | SPRINGER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/2211 |
| Collection | 射电天文研究室_星系宇宙学研究团组 110米口径全可动射电望远镜（QTT）_110米大口径全可动射电望远镜关键技术研究（973项目）_课题1：大样本射电天体的观测和前沿问题研究 |
| Corresponding Author | Liu, Xiang |
| Affiliation | 1.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Peoples R China 2.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Jiangsu, Peoples R China |
| First Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Corresponding Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Liu, Xiang. A model of neutron-star-white-dwarf collision for fast radio bursts[J]. ASTROPHYSICS AND SPACE SCIENCE,2018,363(11):242. |
| APA | Liu, Xiang.(2018).A model of neutron-star-white-dwarf collision for fast radio bursts.ASTROPHYSICS AND SPACE SCIENCE,363(11),242. |
| MLA | Liu, Xiang."A model of neutron-star-white-dwarf collision for fast radio bursts".ASTROPHYSICS AND SPACE SCIENCE 363.11(2018):242. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Liu-2018-A model of （967KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment