SILICON MONOXIDE IN SN-1987A

被引：38

作者：

LIU, WH

DALGARNO, A

机构：

[1] Harvard-Smithsonian Ctr. Astrophys., Cambridge

来源：

ASTROPHYSICAL JOURNAL | 1994年 / 428卷 / 02期

关键词：

INFRARED; STARS; MOLECULAR PROCESSES; INDIVIDUAL; (SN-1987A); SUPERNOVAE; (SN; 1987A);

D O I：

10.1086/174285

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We model the infrared emission of silicon monoxide in SN 1987A from 257 to 519 days. Optical dept effects on the fundamental emission of SiO are significant and the vibrational level Populations of SiO fall out of thermal equilibrium. We solve the equations of statistical equilibrium and fit the observed spectra. The resulting mass of SiO in the supernova is a few times 10(-4) M.. It can be produced by chemistry models in which there is no mixing of helium into the oxygen-silicon region of the ejecta.

引用

页码：769 / 776

页数：8

共 34 条

[31] EXPLOSIVE NUCLEOSYNTHESIS IN SN-1987A .2. COMPOSITION, RADIOACTIVITIES, AND THE NEUTRON STAR MASS [J].