THE NONTHERMAL NUCLEUS OF M87

被引：11
|
作者：
KORMENDY, J [1 ]
机构：
[1] NATL RES COUNCIL CANADA,DOMINION ASTROPHYS OBSERV,OTTAWA K1A 0R6,ONTARIO,CANADA
来源：
ASTROPHYSICAL JOURNAL | 1992年 / 388卷 / 01期
关键词：
GALAXIES; INDIVIDUAL; (M87); NUCLEI;
D O I：
10.1086/186318
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A spectrum along the jet of M87 has been obtained in effective seeing sigma* congruent-to 0.48" with the Canada-France-Hawaii Telescope. Near lambda-5175 (Mg I b), the spectrum of the, nucleus shows both emission and stellar absorption lines. However, when the spectrum of the underlying core of M87 is subtracted, the stellar absorption lines disappear, leaving a blue continuum and the broad emission line [N I] lambda-5199. At visual wavelengths, the nucleus is essentially completely nonthermal; it is not a cluster of stars. This confirms results of Dressler & Richstone.
引用
收藏
页码：L9 / L11
页数：3
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