Linear polarization of H-alpha in the Be star gamma Cassiopeiae
1977; IOP Publishing; Volume: 218; Linguagem: Inglês
10.1086/155673
ISSN1538-4357
AutoresR. Poeckert, J. M. Marlborough,
Tópico(s)Astrophysics and Star Formation Studies
Resumoview Abstract Citations (52) References (19) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Linear polarization of Halpha in the Be star Gamma Cassiopeiae. Poeckert, R. ; Marlborough, J. M. Abstract The reported investigation shows that the position-angle changes in the H-alpha line of gamma Cas can be explained both qualitatively and quantitatively by a rotating disklike envelope. It is concluded that the envelope surrounding gamma Cas is for the most part axisymmetric. The assumption of axial symmetry simplifies the problem of modeling the envelope a great deal. The discussed investigation demonstrates that position-angle changes in the emission lines of Be stars cannot be taken to indicate the presence of interstellar polarization alone. Publication: The Astrophysical Journal Pub Date: November 1977 DOI: 10.1086/155673 Bibcode: 1977ApJ...218..220P Keywords: B Stars; H Alpha Line; Linear Polarization; Stellar Envelopes; Stellar Spectra; Absorption Spectra; Line Shape; Position (Location); Stellar Models; Stellar Rotation; Astrophysics full text sources ADS | data products SIMBAD (1)
Referência(s)