中国科学院紫金山天文台机构知识库
Advanced  
PMO OpenIR  > 太阳高能及相关物理过程研究团组  > 期刊论文
题名: Relativistic baryonic jets from an ultraluminous supersoft X-ray source
作者: Liu, Ji-Feng1, 2; Bai, Yu1; Wang, Song1; Justham, Stephen1, 2; Lu, You-Jun1, 2; Gu, Wei-Min3; Liu, Qing-Zhong4; Di Stefano, Rosanne5; Guo, Jin-Cheng1; Cabrera-Lavers, Antonio6, 7; Alvarez, Pedro6, 7; Cao, Yi8; Kulkarni, Shri8
刊名: NATURE
出版日期: 2015-12-03
卷号: 528, 期号:7580, 页码:108-+
DOI: 10.1038/nature15751
文章类型: Article
英文摘要: The formation of relativistic jets by an accreting compact object is one of the fundamental mysteries of astrophysics. Although the theory is poorly understood, observations of relativistic jets from systems known as microquasars (compact binary stars)(1,2) have led to a well established phenomenology(3,4). Relativistic jets are not expected to be produced by sources with soft or supersoft X-ray spectra, although two such systems are known to produce relatively low-velocity bipolar outflows(5,6). Here we report the optical spectra of an ultraluminous supersoft X-ray source (ULS7,8) in the nearby galaxy M81 (M81 ULS-1; refs 9, 10). Unexpectedly, the spectra show blueshifted, broad H alpha emission lines, characteristic of baryonic jets with relativistic speeds. These time-variable emission lines have projected velocities of about 17 per cent of the speed of light, and seem to be similar to those from the prototype microquasar SS 433 (refs 11, 12). Such relativistic jets are not expected to be launched from white dwarfs(13), and an origin from a black hole or a neutron star is hard to reconcile with the persistence of M81 ULS-1's soft X-rays(10). Thus the unexpected presence of relativistic jets in a ULS challenges canonical theories of jet formation(3,4), but might be explained by a long-speculated, supercritically accreting black hole with optically thick outflows(14-20).
WOS标题词: Science & Technology
类目[WOS]: Multidisciplinary Sciences
研究领域[WOS]: Science & Technology - Other Topics
关键词[WOS]: MASS BLACK-HOLE ; ACCRETION DISKS ; EXTERNAL GALAXIES ; M81 ; DISCOVERY ; BINARIES ; SS-433 ; NOVAE
收录类别: SCI
项目资助者: Chinese Academy of Sciences(XDB09000000) ; 973 Program(2014CB845705) ; National Science Foundation of China(NSFC-11333004/11425313) ; W.M. Keck Foundation
语种: 英语
WOS记录号: WOS:000365606000057
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/16074
Appears in Collections:太阳高能及相关物理过程研究团组_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100012, Peoples R China
2.Univ Chinese Acad Sci, Coll Astron & Space Sci, Beijing 100049, Peoples R China
3.Xiamen Univ, Dept Astron, Xiamen 361005, Fujian Province, Peoples R China
4.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210008, Jiangsu, Peoples R China
5.Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA
6.Inst Astrofis Canarias, E-38200 San Cristobal la Laguna, Tenerife, Spain
7.Univ La Laguna, Dept Astrofis, E-38205 San Cristobal la Laguna, Tenerife, Spain
8.CALTECH, Dept Astron, Pasadena, CA 91125 USA
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Liu, Ji-Feng]'s Articles
[Bai, Yu]'s Articles
[Wang, Song]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Liu, Ji-Feng]‘s Articles
[Bai, Yu]‘s Articles
[Wang, Song]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

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

 

 

Valid XHTML 1.0!
Copyright © 2007-2018  中国科学院紫金山天文台 - Feedback
Powered by CSpace