Ultraviolet Fe VII absorption and Fe II emission lines of central stars of planetary nebulae
- NASA, Goddard Space Flight Center, Greenbelt, MD (United States) Catholic University of America, Washington, DC (United States) Computer Sciences Corp., Greenbelt, MD (United States)
The SWP camera of the IUE satellite was used in the high-dispersion mode to search for Fe VII absorption and Fe II high-excitation emission lines in five additional very hot central stars of planetary nebulae. Some of the Fe VII lines were detected at 1208, 1239, and 1332 A in all the objects of this program, LT 5, NGC 6058, NGC 7094, A43, and Lo 1 (= K1-26), as well as some of the Fe II emission lines at A 1360, 1776, 1869, 1881, 1884, and 1975 A. Two additional objects, NGC 2867 and He 2-131, were obtained from the IUE archive and were evaluated. The present study probably exhausts the list of candidates that are sufficiently bright and hot to be reached with the high-dispersion mode of the IUE. 17 refs.
- OSTI ID:
- 5184742
- Journal Information:
- Astrophysical Journal; (United States), Vol. 377; ISSN 0004-637X
- Country of Publication:
- United States
- Language:
- English
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