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.
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收藏
页码:957 / 963
页数:7
相关论文
共 18 条
[1]
Acker A., 1992, The Strasbourg-ESO Catalogue of Galactic Planetary Nebulae. Parts I