THE CRAB NEBULA'S COMPOSITION AND PRECURSOR STAR MASS

被引：35

作者：

MacAlpine, Gordon M. ^{[1
]}

Satterfield, Timothy J. ^{[1
]}

机构：

[1] Trinity Univ, Dept Phys & Astron, San Antonio, TX 78212 USA

来源：

ASTRONOMICAL JOURNAL | 2008年 / 136卷 / 05期

关键词：

ISM: individual (Crab Nebula); nuclear reactions; nucleosynthesis; abundances; supernovae: individual (SN1054); supernova remnants;

D O I：

10.1088/0004-6256/136/5/2152

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present new photoionization calculations for investigating gaseous regions that represent potentially expected stages of nuclear processing in the Crab Nebula supernova remnant. From comparison of the theoretical models with recent, extensive emission-line measurements, most of the emitting gas appears to be nitrogen-poor and carbon-rich. These results suggest that the precursor star had an initial mass greater than or similar to 9.5M(circle dot).

引用

页码：2152 / 2157

页数：6

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