Spectral and radial velocity studies of 5 northern central stars of planetary nebulae

Bibcode
1990A&A...229..152M
Mendez, R. H.; Herrero, A.; Manchado, A.
Referencia bibliográfica

Astronomy and Astrophysics (ISSN 0004-6361), vol. 229, no. 1, March 1990, p. 152-164. Research supported by the Instituto de Astrofisica de Canarias and Universitaetssternwarte Muenchen.

Fecha de publicación:
3
1990
Número de autores
3
Número de autores del IAC
2
Número de citas
63
Número de citas referidas
50
Descripción
Spectrograms of five bright northern central stars of planetary nebulae (CSPN) are compiled in order to provide spectral descriptions of these stars, with particular attention given to the central stars of NGC 6543 and NGC 6572 (the best examples of the Of WR spectral class) and a comparison of these to less extreme Of CSPN. Results present clear evidence of variations in some emission features in spectra of the central stars of IC 4593, NGC 6826, and NGC 6543, with variation time scales of the order of 1 day or less. No evidence was found of binarity in the central star of NGC 6826, which was previously reported to be a spectroscopic binary.
Tipo
Con árbitro
Nebulosas planetarias
Ambientes estelares
Velocidad radial

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