The IUE and Hubble Space Telescope GHRS spectrum of the "hybrid"/PG 1159-type central star of the planetary nebula NGC 7094

被引:3
作者
Feibelman, WA [1 ]
机构
[1] NASA, Goddard Space Flight Ctr, Astron & Solar Phys Lab, Greenbelt, MD 20771 USA
关键词
line : identification; planetary nebulae : individual (NGC 7094); stars : AGB and post AGB; ultraviolet : stars;
D O I
10.1086/317036
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Absorption features in the IUE spectrum of the "hybrid" PG 1159-type central star of NGC 7094 have been identified and measured. We report equivalent widths for photospheric Fe vI and Fe vII features, interstellar and circumstellar absorptions, and variability of O v lambda 1371 and C Iv lambda 1549 P Cygni profiles. The terminal wind velocity of -3680 +/- 300 km s(-1) was determined from the high-dispersion C IV P Cyg feature. Some features from IUE and Hubble Space Telescope GHRS data are compared.
引用
收藏
页码:957 / 963
页数:7
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