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A model of neutron-star-white-dwarf collision for fast radio bursts
Liu, Xiang1,2
2018-11-01
Source PublicationASTROPHYSICS AND SPACE SCIENCE
ISSN0004-640X
Volume363Issue:11Pages:242
Contribution Rank1
AbstractFast 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.
KeywordPulsars: general Radio continuum: general Scattering
DOI10.1007/s10509-018-3462-3
Indexed BySCI
Language英语
WOS KeywordREIONIZATION HISTORY ; HOST GALAXY ; BINARY ; ORIGIN ; LOCALIZATION ; ENVIRONMENT ; DISPERSION ; MERGER
Funding Projectprogramme 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 AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000448791300002
PublisherSPRINGER
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.xao.ac.cn/handle/45760611-7/2211
Collection中国科学院新疆天文台
Corresponding AuthorLiu, Xiang
Affiliation1.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 AffilicationXinjiang Astronomical Observatory, Chinese Academy of Sciences
Corresponding Author AffilicationXinjiang 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.
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