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G359.95-0.04: an energetic pulsar candidate near Sgr A*
Wang, QD; Lu FJ(卢方军); Lu, FJ; Gotthelf, EV
2006
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷号367期号:3页码:937-944
通讯作者Univ Massachusetts, Dept Astron, Amherst, MA 01003 USA ; Inst Adv Study, Princeton, NJ 08540 USA ; CAS, Inst High Energy Phys, Lab Particle Astrophys, Beijing 100039, Peoples R China ; Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA
文章类型Article
摘要We report the discovery of a prominent non-thermal X-ray feature located near the Galactic centre that we identify as an energetic pulsar wind nebula. This feature, G359.95-0.04, lies 1-lyr north of Sgr A* (in projection), is comet like in shape, and has a power-law spectrum that steepens with increasing distance from the putative pulsar. The distinct spectral and spatial X-ray characteristics of the feature are similar to those belonging to the rare class of ram-pressure confined pulsar wind nebulae. The luminosity of the nebula at the distance of Sgr A*, consistent with the inferred X-ray absorptions, is L(x)similar to 1 x 10(34) erg s(-1) in the 2-10 keV energy band. The cometary tail extends back to a region centred at the massive stellar complex IRS 13 and surrounded by an enhanced diffuse X-ray emission, which may represent an associated supernova remnant. Furthermore, the inverse Compton scattering of the strong ambient radiation by the nebula consistently explains the observed TeV emission from the Galactic centre. We also briefly discuss plausible connections of G359.95-0.04 to other high-energy sources in the region, such as the young stellar complexes IRS 13 and SNR Sgr A East.
关键词pulsars : general supernova remnants X-rays : individual G359.95-0.04, Sgr A*, IRS 13
学科领域Astronomy & Astrophysics
研究领域[WOS]Astronomy & Astrophysics ; Astronomy & Astrophysics
DOI10.1111/j.1365-2966.2006.09998.x
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语种英语
研究领域[WOS]Astronomy & Astrophysics ; Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000236385600007
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被引频次:75[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/311005/238772
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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Wang, QD,Lu FJ,Lu, FJ,et al. G359.95-0.04: an energetic pulsar candidate near Sgr A*[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2006,367(3):937-944.
APA Wang, QD,卢方军,Lu, FJ,&Gotthelf, EV.(2006).G359.95-0.04: an energetic pulsar candidate near Sgr A*.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,367(3),937-944.
MLA Wang, QD,et al."G359.95-0.04: an energetic pulsar candidate near Sgr A*".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 367.3(2006):937-944.
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