HCN(J=1-0) maser emission in the bright carbon star YCVn

被引：0
|
作者：
Dinh-V-Trung
Forster, JR
Nguyen-Q-Rieu
机构：
[1] Acad Sinica, Inst Astron & Astrophys, Taipei 11529, Taiwan
[2] UCLA Berkeley, Hat Creek Radio Observ, Hat Creek, CA 96040 USA
[3] Observ Paris, DEMIRM, F-75014 Paris, France
来源：
COSMIC MASERS: FROM PROTOSTARS TO BLACKHOLES | 2002年 / 206期
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D O I：
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中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present high resolution observations of HCN(J=1-0) line in the bright carbon star Y CVn. With an angular resolution of 0.5 arcsec we are able to resolve the HCN envelope around Y CVn. The HCN(J=1-0) line profile toward the central position exhibits several strong spikes having brightness temperature in excess of 1000 K. This result indicates that the J=1-0 line is masing. We also discuss the pump mechanism of this maser and the implication for the determination of the HCN abundance.
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页码：340 / 342
页数：3
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