DETECTION OF THE (SIO)-SI-29 UPSILON=1, J=1-0 MASER FROM TX-CAMELOPARDALIS

被引：0
|
作者：
CHO, SH [1 ]
UKITA, N [1 ]
机构：
[1] NATL ASTRON OBSERV,NOBEYAMA RADIO OBSERV,MINAMISA KU,NAGANO 38413,JAPAN
来源：
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN | 1995年 / 47卷 / 01期
关键词：
MASERS; SIO; STARS; CIRCUMSTELLAR SHELLS; LONG-PERIOD VARIABLES;
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The maser emission from the v = 1, J = 1-0 transition of (SiO)-Si-29 has been detected for the first time toward the Mira variable star TX Cam among 54 surveyed late-type stars. The line was fairly narrower than the (SiO)-Si-29 v = 0, J = 1-0 transition, and slightly redshifted compared to the v = 0 line. In addition, the (SiO)-Si-28 v = 2, J = 2-1 transition has also been newly detected in this star. Based on the line intensity, the pumping mechanism for the (SiO)-Si-29 v = 1, J = 1-0 maser is discussed. The simple large velocity-gradient model and the line overlap of H2O can not be adopted for this maser.
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页码：L1 / L4
页数：4
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