Zeta Puppis - an O-type oblique rotator
1981; IOP Publishing; Volume: 251; Linguagem: Inglês
10.1086/159447
ISSN1538-4357
Autores Tópico(s)Astronomy and Astrophysical Research
Resumoview Abstract Citations (46) References (33) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS ZET PUP : an o-type oblique rotator ? Moffat, A. F. J. ; Michaud, G. Abstract Periodic variability has been found by means of spectrophotometric observations in the depth of the nearly central absorption reversal of the P Cygni-type H-alpha profile from the O4ef star, Zeta Puppis. The 5.075-day period derived implies that the H-alpha-forming part of the stellar wind corrotates with the photosphere, with a rotation period of about 4.8 days. The suggestion that the periodic variations are due to a rotating magnetic multipole, as observed in Ap stars, may be tested by further high-resolution measurements of radial velocity or polarization variations of the absorbing matter. Publication: The Astrophysical Journal Pub Date: December 1981 DOI: 10.1086/159447 Bibcode: 1981ApJ...251..133M Keywords: Magnetic Stars; O Stars; Stellar Rotation; Stellar Spectrophotometry; Stellar Winds; A Stars; H Alpha Line; High Resolution; Line Shape; Magnetic Field Configurations; Magnetic Poles; Multipolar Fields; Photosphere; Plasma Diagnostics; Wind Velocity Measurement; Astronomy full text sources ADS | data products SIMBAD (1)
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