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Identifying the Origin of Fast Radio Burst–Associated X-Ray Bursts with X-Ray Polarization

dc.contributor.authorShu-Qing Zhong
dc.contributor.authorLong Li
dc.contributor.authorBiao Zhang
dc.contributor.authorZi-Gao Dai
dc.contributor.otherSchool of Science, Guangxi University of Science and Technology , Liuzhou 545006, People's Republic of China; Department of Astronomy, University of Science and Technology of China , Hefei 230026, People's Republic of China ; daizg@ustc.edu.cn; School of Astronomy and Space Science, University of Science and Technology of China , Hefei 230026, People's Republic of China
dc.contributor.otherDepartment of Astronomy, University of Science and Technology of China , Hefei 230026, People's Republic of China ; daizg@ustc.edu.cn; School of Astronomy and Space Science, University of Science and Technology of China , Hefei 230026, People's Republic of China; Department of Physics, School of Physics and Materials Science, Nanchang University , Nanchang 330031, People's Republic of China
dc.contributor.otherDepartment of Astronomy, University of Science and Technology of China , Hefei 230026, People's Republic of China ; daizg@ustc.edu.cn; School of Astronomy and Space Science, University of Science and Technology of China , Hefei 230026, People's Republic of China
dc.contributor.otherDepartment of Astronomy, University of Science and Technology of China , Hefei 230026, People's Republic of China ; daizg@ustc.edu.cn; School of Astronomy and Space Science, University of Science and Technology of China , Hefei 230026, People's Republic of China
dc.date.accessioned2025-10-09T04:39:39Z
dc.date.available2025-10-09T04:39:39Z
dc.date.issued01-01-2024
dc.identifier.urihttps://doi.org/10.3847/1538-4357/ad83ba
dc.identifier.urihttp://digilib.fisipol.ugm.ac.id/repo/handle/15717717/40750
dc.description.abstractThe origin of an extraordinary X-ray burst (XRB) associated with a fast radio burst (FRB) such as FRB 20200428 is still unclear, though several models, such as the emission of a trapped fireball modified by resonant cyclotron scattering, the outflow from a polar trapped-expanding fireball, and the synchrotron radiation of a far-away relativistic shock, have been proposed. To determine which model is true, we study the possible X-ray polarization signature for each model, inspired by the importance of radio polarization in identifying the FRB origin. We first numerically simulate or calculate the XRB spectrum for each model and fit it to the observed data, then compute the corresponding polarization signal based on the fit. We find that these three models predict different polarization patterns in terms of phase/time and energy variations. The differences can be used to test the models with future X-ray polarization observations.
dc.language.isoEN
dc.publisherIOP Publishing
dc.subject.lccAstrophysics
dc.titleIdentifying the Origin of Fast Radio Burst–Associated X-Ray Bursts with X-Ray Polarization
dc.typeArticle
dc.description.keywordsMagnetars
dc.description.keywordsPolarimetry
dc.description.keywordsRadio bursts
dc.description.keywordsRadio transient sources
dc.description.keywordsX-ray bursts
dc.description.doi10.3847/1538-4357/ad83ba
dc.title.journalThe Astrophysical Journal
dc.identifier.e-issn1538-4357
dc.identifier.oaioai:doaj.org/journal:5ca5f95cd07a454186d7835746be08dc
dc.journal.infoVolume 976, Issue 1


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