G7.7-3.7: A Young Supernova Remnant Probably Associated with the Guest Star in 386 CE (SN 386)

doi:10.3847/2041-8213/aae07d

CORC > 国家天文台 > 中国科学院国家天文台

	G7.7-3.7: A Young Supernova Remnant Probably Associated with the Guest Star in 386 CE (SN 386)
	Zhou, Ping 1,2; Vink, Jacco 1,3,4; Li, Geng 5,6; Domcek, Vladimir 1,3
刊名	ASTROPHYSICAL JOURNAL LETTERS
	2018-09-20
卷号	865 期号:1 页码:5
关键词	ISM: individual objects (G7.7-3.7-SN 386) ISM: supernova remnants supernovae: general
ISSN号	2041-8205
DOI	10.3847/2041-8213/aae07d
英文摘要	Although the Galactic supernova rate is about two per century, only few supernova remnants (SNRs) are associated with historical records. There are a few ancient Chinese records of "guest stars" that are probably sightings of supernovae for which the associated SNRs are not established. Here we present an X-ray study of the SNR G7.7-3.7, as observed by XMM-Newton, and discuss its probable association with the guest star of 386 CE. This guest star occurred in the ancient Chinese asterism Nan-Dou, which is part of Sagittarius. The X-ray morphology of G7.7-3.7 shows an arc-like feature in the SNR south, which is characterized by an under-ionized plasma with subsolar abundances, a temperature of 0.4-0.8. keV, and a density of similar to 0.5(d/4 kpc)(-0.5) cm(-3). A small shock age of 1.2 +/- 0.6(d/4 kpc)(0.5) kyr is inferred from the low ionization timescale of 2.4(-1.3)(+1.1) x 10(10) cm(-3) s of the X-ray arc. The low foreground absorption (N-H = 3.5 +/- 0.5 x 10(21) cm(-2)) of G7.7-3.7 made the supernova explosion visible to the naked eye on the Earth. The position of G7.7-3.7 is consistent with the event of 386. CE, and the X-ray properties suggest that its age is also consistent. Interestingly, the association between G7.7-3.7 and guest star. 386 suggests that the supernova was a low-luminosity supernova, thus explaining the brief visibility (2-4 months) of the guest star.
资助项目	NWO Veni Fellowship[639.041.647] ; NSFC[11503008] ; NSFC[11590781] ; Youth Innovation Promotion Association, CAS[2016053]
WOS关键词	EXPANDING PHOTOSPHERE METHOD ; LOW-LUMINOSITY ; RADIO ; DISTANCE
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000445132200002
资助机构	NWO Veni Fellowship ; NWO Veni Fellowship ; NSFC ; NSFC ; Youth Innovation Promotion Association, CAS ; Youth Innovation Promotion Association, CAS ; NWO Veni Fellowship ; NWO Veni Fellowship ; NSFC ; NSFC ; Youth Innovation Promotion Association, CAS ; Youth Innovation Promotion Association, CAS ; NWO Veni Fellowship ; NWO Veni Fellowship ; NSFC ; NSFC ; Youth Innovation Promotion Association, CAS ; Youth Innovation Promotion Association, CAS ; NWO Veni Fellowship ; NWO Veni Fellowship ; NSFC ; NSFC ; Youth Innovation Promotion Association, CAS ; Youth Innovation Promotion Association, CAS
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/22878]
专题	中国科学院国家天文台
通讯作者	Zhou, Ping
作者单位	1.Univ Amsterdam, Anton Pannekoek Inst Astron, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands 2.Nanjing Univ, Sch Astron & Space Sci, 163 Xianlin Ave, Nanjing 210023, Jiangsu, Peoples R China 3.Univ Amsterdam, GRAPPA, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands 4.SRON Netherlands Inst Space Res, SRON, Sorbonnelaan 2, NL-3584 CA Utrecht, Netherlands 5.Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100101, Peoples R China 6.Univ Chinese Acad Sci, Sch Astron & Space Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Ping,Vink, Jacco,Li, Geng,et al. G7.7-3.7: A Young Supernova Remnant Probably Associated with the Guest Star in 386 CE (SN 386)[J]. ASTROPHYSICAL JOURNAL LETTERS,2018,865(1):5.
APA	Zhou, Ping,Vink, Jacco,Li, Geng,&Domcek, Vladimir.(2018).G7.7-3.7: A Young Supernova Remnant Probably Associated with the Guest Star in 386 CE (SN 386).ASTROPHYSICAL JOURNAL LETTERS,865(1),5.
MLA	Zhou, Ping,et al."G7.7-3.7: A Young Supernova Remnant Probably Associated with the Guest Star in 386 CE (SN 386)".ASTROPHYSICAL JOURNAL LETTERS 865.1(2018):5.