LOW-RESOLUTION SPECTROPHOTOMETRIC STUDIES OF WATER-VAPOR IN CIRCUMSTELLAR ENVELOPES

被引：0
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作者：
ALEKSEEVA, GA
GALKIN, VD
NOVIKOV, VV
机构：
来源：
ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS | 1994年 / 20卷 / 02期
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P1 [天文学];
学科分类号：
0704 ;
摘要：
For the stars R Lyr, T Cep, R Hya, and o Cet, excess absorption in the 0.93 mum water-vapor band was determined relative to other stars of the same spectral types using low-resolution spectrophotometric data. This excess absorption is thought to be due to the presence of water vapor in circumstellar envelopes. The water column densities for the stars R Lyr, T Cep, R Hya, and o Cet were estimated to be 2 x 10(21), 3 x 10(21), 1.1 x 10(22), and 1.2 x 10(22) cm(-2), respectively.
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页码：173 / 176
页数：4
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