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The Chandra detection of Galactic center X-ray features G359.89-0.08 and G359.54+0.18
Lu FJ(卢方军); Lu, FJ; Wang, QD; Lang, CC
2003
发表期刊ASTRONOMICAL JOURNAL
卷号126期号:1页码:319-326
通讯作者Univ Massachusetts, Dept Astron, Amherst, MA 01003 USA ; Chinese Acad Sci, Inst High Energy Phys, Lab Particle Astrophys, Beijing 100039, Peoples R China ; Univ Iowa, Dept Phys & Astron, Iowa City, IA 52245 USA
摘要We report the detection of two elongated X-ray features, G359.89-0.08 and G359.54+ 0.18, in the Galactic center (GC) region using the Chandra X-Ray Observatory. G359.89-0.08 is an elongated X-ray feature located similar to2' in projection south of the center of the Galaxy, Sgr A*. This X-ray feature source is partially coincident with a slightly curved ("wisplike'') nonthermal radio source. The X-ray spectrum of G359.89-0.08 can best be characterized as nonthermal, with a photon index of 2. The morphological and spectral characteristics of the X-ray and radio emission associated with G359.89+0.08 are best interpreted as the synchrotron emission from a ram pressure-confined pulsar wind nebula. G359.54+ 0.18 is one of the most prominent radio nonthermal. laments (NTFs) in the GC region, located similar to30' in projection from Sgr A*. A narrow (similar to10"). lament of X-ray emission appears to arise from one of the two strands that make up the radio NTF. Although the photon statistics are poor for this source, the X-ray emission is also likely to be nonthermal in nature. Several models for the production of X-ray emission in G359.54+ 0.18 are discussed.
文章类型Article
关键词Galaxy : center ISM : jets and outflows stars : neutron supernova remnants X-rays
学科领域Astronomy & Astrophysics
DOI10.1086/375754
研究领域[WOS]Astronomy & Astrophysics
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语种英语
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000183905500028
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被引频次:29[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/311005/236947
专题粒子天体物理中心
作者单位中国科学院高能物理研究所
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Lu FJ,Lu, FJ,Wang, QD,et al. The Chandra detection of Galactic center X-ray features G359.89-0.08 and G359.54+0.18[J]. ASTRONOMICAL JOURNAL,2003,126(1):319-326.
APA 卢方军,Lu, FJ,Wang, QD,&Lang, CC.(2003).The Chandra detection of Galactic center X-ray features G359.89-0.08 and G359.54+0.18.ASTRONOMICAL JOURNAL,126(1),319-326.
MLA 卢方军,et al."The Chandra detection of Galactic center X-ray features G359.89-0.08 and G359.54+0.18".ASTRONOMICAL JOURNAL 126.1(2003):319-326.
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