The case of the fastest stellar wind in central stars of planetary nebulae

被引：0
|
作者：
Patriarchi, P [1 ]
Perinotto, M [1 ]
机构：
[1] UNIV FLORENCE,DIPARTIMENTO ASTRON & SCI SPAZIO,I-50125 FLORENCE,ITALY
来源：
ASTROPHYSICS AND SPACE SCIENCE | 1996年 / 238卷 / 01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：
An exceptionally fast wind (8500 km/s) was suggested to occur in the central star of the planetary nebula K1-16, belonging to the class of the PG 1159 H-deficient pre-white dwarfs. To ascertain the reality of such a fast wind this star has been observed with the HST telescope using the GHRS in the zone of the C IV 155.0 nm doublet. The HST data and tests made using synthetic stellar spectra support the existence of a stellar wind with a terminal velocity of 3800 km/s and a mass loss rate lower than M < 2 . 10(-11) M. per year. Possibly it is no longer the fastest stellar wind so far observed but it is still among the fastest.
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页码：97 / 100
页数：4
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