IHEP OpenIR  > 院士
X-ray spectroscopy of PSR B1951+32 and its pulsar wind nebula
Li XH(李向华); Lu FJ(卢方军); Li TB(李惕碚); Li, XH; Lu, FJ; Li, TP
2005
发表期刊ASTROPHYSICAL JOURNAL
卷号628期号:2页码:931-937
通讯作者CAS, Inst High Energy Phys, Lab Particle Astrophys, Beijing 100049, Peoples R China ; Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China ; Tsinghua Univ, Ctr Astrophys, Beijing 100084, Peoples R China
文章类型Article
摘要We present spatially resolved X-ray spectroscopy of PSR B1951+32 and its pulsar wind nebula (PWN) in supernova remnant (SNR) CTB 80 from a Chandra observation. The Chandra X-ray map clearly reveals various components of a ram-pressure-confined PWN embedded in the SNR ejecta: a point source representing the pulsar, X-ray emission from the bow shock, a luminous X-ray tail, a 3000 diameter plateau whose northwestern part is absent, and the more diffuse outer X-ray emission. The plateau is closely surrounded by the radio, [O III], [S II], and [N II] shells, and the outer diffuse emission is mostly within the H alpha shells. While the spectra of all the features are well fitted with power-law models, a power-law plus blackbody model can fit the spectrum of the pulsar significantly better than using a power-law model alone. Generally, the spectra of these components obey the trend of steepening from the inside to the outside. However, the edge of the plateau probably has a harder spectrum than the central region of the plateau. The cause of the apparent hard spectrum of the plateau edge is unclear, but we speculate that it might be due to a shock between the PWN and the SNR ejecta. The possible blackbody radiation component from the pulsar has a temperature of 0.13 +/- 0.02 keV and an equivalent emitting radius of 2.2(-0.8)(+1.4) (d/2 kpc) km, and is thus probably from the hot spots on the pulsar. We also show in this paper that the blackbody temperature of the entire surface of PSR B1951+32 is much lower than those predicted by the standard neutron star cooling models.
关键词pulsars : general stars : neutron supernova remnants
学科领域Astronomy & Astrophysics
DOI10.1086/430941
URL查看原文
语种英语
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000230817300035
引用统计
被引频次:24[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/238762
专题院士
作者单位中国科学院高能物理研究所
推荐引用方式
GB/T 7714
Li XH,Lu FJ,Li TB,et al. X-ray spectroscopy of PSR B1951+32 and its pulsar wind nebula[J]. ASTROPHYSICAL JOURNAL,2005,628(2):931-937.
APA 李向华,卢方军,李惕碚,Li, XH,Lu, FJ,&Li, TP.(2005).X-ray spectroscopy of PSR B1951+32 and its pulsar wind nebula.ASTROPHYSICAL JOURNAL,628(2),931-937.
MLA 李向华,et al."X-ray spectroscopy of PSR B1951+32 and its pulsar wind nebula".ASTROPHYSICAL JOURNAL 628.2(2005):931-937.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
5776.pdf(542KB)期刊论文作者接受稿限制开放CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[李向华]的文章
[卢方军]的文章
[李惕碚]的文章
百度学术
百度学术中相似的文章
[李向华]的文章
[卢方军]的文章
[李惕碚]的文章
必应学术
必应学术中相似的文章
[李向华]的文章
[卢方军]的文章
[李惕碚]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。