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High spatial resolution spectroscopy of G292.0+1.8 with Chandra
Yang, XJ; Liu, XQ; Li, SY; Lu, FJ;卢方军
2014
发表期刊RESEARCH IN ASTRONOMY AND ASTROPHYSICS
卷号14期号:10页码:1279-1288
摘要We present high spatial resolution X-ray spectroscopy of supernova remnant G292.0+1.8 made with Chandra observations. The X-ray emitting region of this remnant was divided into 25x25 pixels with a scale of 20 '' x20 '' each. Spectra of 328 pixels were created and fitted with an absorbed one component non-equilibrium ionization model. With the spectral analysis results, we obtained maps of absorbing column density, temperature, ionization age and abundances for O, Ne, Mg, Si, S and Fe. The abundances of O, Ne and Mg show tight correlations between each other in the range of about two orders of magnitude, suggesting that they are all from explosive C/Ne burning. Meanwhile, the abundances of Si and S are also well correlated, indicating that they are the ashes of explosive O-burning or incomplete Si-burning. The Fe emission lines are not prominent in the whole remnant, and their abundance is significantly reduced, indicating that the reverse shock may not have propagated to the Fe-rich ejecta. Based on relative abundances of O, Ne, Mg, Si and Fe to Si, we suggest a progenitor mass of 25 - 30 M-circle dot for this remnant.
关键词ISM: supernova remnants ISM: individual: G292.0+1.8
学科领域Astronomy & Astrophysics
DOI10.1088/1674-4527/14/10/007
收录类别SCI
WOS记录号WOS:000342804500007
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被引频次:2[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/311005/225335
专题粒子天体物理中心
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Yang, XJ,Liu, XQ,Li, SY,et al. High spatial resolution spectroscopy of G292.0+1.8 with Chandra[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2014,14(10):1279-1288.
APA Yang, XJ,Liu, XQ,Li, SY,&Lu, FJ;卢方军.(2014).High spatial resolution spectroscopy of G292.0+1.8 with Chandra.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,14(10),1279-1288.
MLA Yang, XJ,et al."High spatial resolution spectroscopy of G292.0+1.8 with Chandra".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 14.10(2014):1279-1288.
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