PMO OpenIR
A magnetar-powered X-ray transient as the aftermath of a binary neutron-star merger
Xue, Y. Q.1,2; Zheng, X. C.1,2,3; Li, Y.4; Brandt, W. N.5,6,7; Zhang, B.8,9,10; Luo, B.11,12,13; Zhang, B. -B.11,12,13; Bauer, F. E.14,15,16,17; Sun, H.9; Lehmer, B. D.18; Wu, X. -F.2,19; Yang, G.5,6; Kong, X.1,2; Li, J. Y.1,2; Sun, M. Y.1,2; Wang, J. -X.1,2; Vito, F.14,15,20
2019-04-11
Source PublicationNATURE
ISSN0028-0836
Volume568Issue:7751Pages:198-+
Corresponding AuthorXue, Y. Q.(xuey@ustc.edu.cn) ; Zheng, X. C.(zheng@strw.leidenuniv.nl) ; Zhang, B.(zhang@physics.unlv.edu)
AbstractMergers of neutron stars are known to be associated with short gamma-ray bursts(1-4). If the neutron-star equation of state is sufficiently stiff (that is, the pressure increases sharply as the density increases), at least some such mergers will leave behind a supramassive or even a stable neutron star that spins rapidly with a strong magnetic field(5-8) (that is, a magnetar). Such a magnetar signature may have been observed in the form of the X-ray plateau that follows up to half of observed short gamma-ray bursts(9,10). However, it has been expected that some X-ray transients powered by binary neutron-star mergers may not be associated with a short gamma-ray burst(11,12). A fast X-ray transient (CDF-S XT1) was recently found to be associated with a faint host galaxy, the redshift of which is unknown(13). Its X-ray and host-galaxy properties allow several possible explanations including a short gamma-ray burst seen off-axis, a low-luminosity gamma-ray burst at high redshift, or a tidal disruption event involving an intermediate-mass black hole and a white dwarf(13). Here we report a second X-ray transient, CDF-S XT2, that is associated with a galaxy at redshift z = 0.738 (ref.(14)). The measured light curve is fully consistent with the X-ray transient being powered by a millisecond magnetar. More intriguingly, CDF-S XT2 lies in the outskirts of its star-forming host galaxy with a moderate offset from the galaxy centre, as short gamma-ray bursts often do(15,16). The estimated event-rate density of similar X-ray transients, when corrected to the local value, is consistent with the event-rate density of binary neutron-star mergers that is robustly inferred from the detection of the gravitational-wave event GW170817.
DOI10.1038/s41586-019-1079-5
WOS KeywordEXTENDED EMISSION ; TIDAL DISRUPTION ; ENERGY INJECTION ; EVOLUTION ; AFTERGLOW ; BURSTS ; FLARES ; MODEL ; BIRTH
Indexed BySCI
Language英语
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000464412700041
PublisherNATURE PUBLISHING GROUP
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/24491
Collection中国科学院紫金山天文台
Corresponding AuthorXue, Y. Q.; Zheng, X. C.; Zhang, B.
Affiliation1.Univ Sci & Technol China, Dept Astron, CAS Key Lab Res Galaxies & Cosmol, Hefei, Anhui, Peoples R China
2.Univ Sci & Technol China, Sch Astron & Space Sci, Hefei, Anhui, Peoples R China
3.Leiden Univ, Leiden Observ, Leiden, Netherlands
4.Peking Univ, Kavli Inst Astron & Astrophys, Beijing, Peoples R China
5.Penn State Univ, Dept Astron & Astrophys, 525 Davey Lab, University Pk, PA 16802 USA
6.Penn State Univ, Inst Gravitat & Cosmos, University Pk, PA 16802 USA
7.Penn State Univ, Dept Phys, 104 Davey Lab, University Pk, PA 16802 USA
8.Univ Nevada, Dept Phys & Astron, Las Vegas, NV 89154 USA
9.Chinese Acad Sci, Natl Astron Observ, Beijing, Peoples R China
10.Peking Univ, Sch Phys, Dept Astron, Beijing, Peoples R China
11.Nanjing Univ, Sch Astron & Space Sci, Nanjing, Jiangsu, Peoples R China
12.Nanjing Univ, Key Lab Modern Astron & Astrophys, Nanjing, Jiangsu, Peoples R China
13.Collaborat Innovat Ctr Modern Astron & Space Expl, Nanjing, Jiangsu, Peoples R China
14.Pontificia Univ Catolica Chile, Fac Fis, Inst Astrofis, Santiago, Chile
15.Pontificia Univ Catolica Chile, Fac Fis, Ctr Astroingn, Santiago, Chile
16.Millennium Inst Astrophys MAS, Santiago, Chile
17.Space Sci Inst, Boulder, CO USA
18.Univ Arkansas, Dept Phys, Fayetteville, AR 72701 USA
19.Chinese Acad Sci, Purple Mt Observ, Nanjing, Jiangsu, Peoples R China
20.Chinese Acad Sci, Natl Astron Observ, CAS South Amer Ctr Astron, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Xue, Y. Q.,Zheng, X. C.,Li, Y.,et al. A magnetar-powered X-ray transient as the aftermath of a binary neutron-star merger[J]. NATURE,2019,568(7751):198-+.
APA Xue, Y. Q..,Zheng, X. C..,Li, Y..,Brandt, W. N..,Zhang, B..,...&Vito, F..(2019).A magnetar-powered X-ray transient as the aftermath of a binary neutron-star merger.NATURE,568(7751),198-+.
MLA Xue, Y. Q.,et al."A magnetar-powered X-ray transient as the aftermath of a binary neutron-star merger".NATURE 568.7751(2019):198-+.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Xue, Y. Q.]'s Articles
[Zheng, X. C.]'s Articles
[Li, Y.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Xue, Y. Q.]'s Articles
[Zheng, X. C.]'s Articles
[Li, Y.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Xue, Y. Q.]'s Articles
[Zheng, X. C.]'s Articles
[Li, Y.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.