THE SHAPE OF THE HOMUNCULUS NEBULA AROUND ETA-CARINAE

被引:65
作者
ALLEN, DA [1 ]
HILLIER, DJ [1 ]
机构
[1] INST ASTRON & ASTROPHYS,MUNICH,GERMANY
来源
PROCEEDINGS ASTRONOMICAL SOCIETY OF AUSTRALIA | 1993年 / 10卷 / 04期
关键词
D O I
10.1017/S1323358000025996
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
From extensive spectroscopic observations we derive the three-dimensional structure of the Homunculus Nebula surrounding eta Carinae. The analysis shows that the two lobes are hollow and incomplete, and that the gas was ejected at similar epoch. Consequently the distribution of material we see reflects its initial velocity. Using the observed expansion velocity, and the known time of ejection, we derive a distance to eta Car of 2.2 +/- 0.2 kpc.
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页码:338 / 341
页数:4
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