A 21 MICRON EMISSION FEATURE IN 4 PROTO-PLANETARY NEBULAE

被引:188
作者
KWOK, S
VOLK, KM
HRIVNAK, BJ
机构
[1] NASA, AMES RES CTR, MOFFETT FIELD, CA 94035 USA
[2] VALPARAISO UNIV, DEPT PHYS, VALPARAISO, IN 46383 USA
关键词
D O I
10.1086/185550
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
引用
收藏
页码:L51 / L54
页数:4
相关论文
共 17 条
[1]   VARIATIONS IN THE HCN HNC ABUNDANCE RATIO IN THE ORION MOLECULAR CLOUD [J].
GOLDSMITH, PF ;
IRVINE, WM ;
HJALMARSON, A ;
ELLDER, J .
ASTROPHYSICAL JOURNAL, 1986, 310 (01) :383-391
[2]   THE HIGH-LATITUDE F SUPERGIANT IRAS 18095 + 2704 - A PROTO-PLANETARY NEBULA [J].
HRIVNAK, BJ ;
KWOK, S ;
VOLK, KM .
ASTROPHYSICAL JOURNAL, 1988, 331 (02) :832-837
[3]   IDENTIFICATION OF IRAS OH IR-LIKE SOURCES [J].
HRIVNAK, BJ ;
KWOK, S ;
BOREIKO, RT .
ASTROPHYSICAL JOURNAL, 1985, 294 (02) :L113-+
[4]  
HRIVNAK BJ, 1989, UNPUB
[5]  
HRIVNAK BJ, 1989, IN PRESS AP J
[7]   GROUND-BASED INFRARED OBSERVATIONS OF VARIABLE IRAS SOURCES AS CANDIDATES FOR LATE ASYMPTOTIC GIANT BRANCH STARS [J].
KWOK, S ;
HRIVNAK, BJ ;
BOREIKO, RT .
ASTROPHYSICAL JOURNAL, 1987, 321 (02) :975-983
[8]   GROUND-BASED OBSERVATIONS OF IRAS CANDIDATES FOR LATE ASYMPTOTIC GIANT BRANCH STARS [J].
KWOK, S ;
HRIVNAK, BJ ;
BOREIKO, RT .
ASTROPHYSICAL JOURNAL, 1987, 312 (01) :303-313
[9]   CARBON STARS WITH SILICATE DUST IN THEIR CIRCUMSTELLAR SHELLS [J].
LITTLEMARENIN, IR .
ASTROPHYSICAL JOURNAL, 1986, 307 (01) :L15-L19
[10]  
Nakamoto K., 1969, INFRARED RAMAN SPECT, V3rd