Optical spectroscopy of carbon stars discovered by IRAS

被引：4
|
作者：
Cohen, M
Wainscoat, RJ
Walker, HJ
Volk, K
机构：
[1] UNIV CALIF BERKELEY,RADIO ASTRON LAB,BERKELEY,CA 94720
[2] UNIV HAWAII,INST ASTRON,HONOLULU,HI 96822
[3] UNIV CALGARY,DEPT PHYS,CALGARY,AB T2N 1N4,CANADA
[4] RUTHERFORD APPLETON LAB,DEPT SPACE SCI,DIDCOT OX11 0QX,OXON,ENGLAND
来源：
ASTRONOMICAL JOURNAL | 1996年 / 111卷 / 03期
关键词：
D O I：
10.1086/117879
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We have secured optical spectral classifications of ten C-type counterparts of IRAS sources selected according to criteria of IRAS colors and/or IRAS low-resolution spectrometer data. We provide two-dimensional carbon star spectral classes for all ten, based on a quantitative scheme for correcting the Na D line strength for overlying CN absorption. About half of these stars show evidence of significant extinction due to their circumstellar dust envelopes. (C) 1996 American Astronomical Society.
引用
收藏
页码：1333 / 1337
页数：5
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