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REVERSE-SHOCK IN TYCHO'S SUPERNOVA REMNANT
Lu FJ(卢方军); Ge MY(葛明玉); Zheng SJ(郑世界); Zhang SN(张双南); Long X(龙曦); Lu, FJ; Ge, MY; Zheng, SJ; Zhang, SN; Long, X; Aschenbach, B
2015
发表期刊ASTROPHYSICAL JOURNAL
卷号805期号:2页码:142
通讯作者卢方军
摘要Thermal X-ray emission from young supernova remnants (SNRs) is usually dominated by the emission lines of the supernova ejecta, which are widely believed to be crossed and thus heated by the inward-propagating reverse shock (RS). Previous works using X-ray imaging data have shown that the ejecta are heated by the RS by locating the peak emission region of the most recently ionized matter, which is found to be well separated toward the inside from the outermost boundary. Here we report the discovery of a systematic increase of the Sulfur (S) to Silicon (Si) Ka line flux ratio with radius in Tycho's SNR. This allows us, for the first time, to present continuous radial profiles of the ionization age and, furthermore, the elapsed ionization time since the onset of the ionization, which gives the history of the propagation of the ionization front into the SNR ejecta.
文章类型Article
关键词ISM: supernova remnants supernovae: general supernovae: individual (Tycho's SN)
学科领域Astronomy & Astrophysics
DOI10.1088/0004-637X/805/2/142
收录类别SCI ; CA
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000356715400057
引用统计
被引频次:1[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/311005/228404
专题粒子天体物理中心
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GB/T 7714
Lu FJ,Ge MY,Zheng SJ,et al. REVERSE-SHOCK IN TYCHO'S SUPERNOVA REMNANT[J]. ASTROPHYSICAL JOURNAL,2015,805(2):142.
APA 卢方军.,葛明玉.,郑世界.,张双南.,龙曦.,...&Aschenbach, B.(2015).REVERSE-SHOCK IN TYCHO'S SUPERNOVA REMNANT.ASTROPHYSICAL JOURNAL,805(2),142.
MLA 卢方军,et al."REVERSE-SHOCK IN TYCHO'S SUPERNOVA REMNANT".ASTROPHYSICAL JOURNAL 805.2(2015):142.
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