Axi-symmetric models of B[e] supergiants

作者: J. Zsargó , D. J. Hillier , L. N. Georgiev

DOI: 10.1051/0004-6361:20078293

关键词:

摘要: Aims. We calculate the hydrogen and helium ionization in B[e] envelopes explore their dependence on mass-loss effective temperature. also present simulated observations of Hα emission line C iv λλ1550 doublet, study behavior. This paper reports our first results an ongoing supergiants, provides a glimpse most important elements self-consistent numerical simulations. Methods. Our newly developed 2D stellar atmosphere code, ASTAROTH, was used for The code selfconsistently solves continuum radiation, non-LTE level populations, electron temperature axi-symmetric envelopes. Observed profiles were calculated by auxiliary program separately from ASTAROTH. Results. In all but one models, H remained fully ionized – only u

参考文章(42)
J. Zsargó, D. J. Hillier, L. N. Georgiev, 2D non-LTE modeling for axi-symmetric winds Astronomy & Astrophysics. ,vol. 447, pp. 1093- 1109 ,(2006) , 10.1051/0004-6361:20053728
Regina E. Schulte-Ladbeck, Evolutionary Connections among Massive Stars — An Observer’s Perspective B[e] stars. ,vol. 233, pp. 253- 258 ,(1998) , 10.1007/978-94-015-9014-3_27
J. E. Bjorkman, J. P. Cassinelli, Equatorial disk formation around rotating stars due to ram pressure confinement by the stellar wind The Astrophysical Journal. ,vol. 409, pp. 429- 449 ,(1993) , 10.1086/172676
J. H. Groh, D. J. Hillier, A. Damineli, AG Carinae: A Luminous Blue Variable with a High Rotational Velocity The Astrophysical Journal. ,vol. 638, ,(2006) , 10.1086/500928
D. J. Hillier, T. J. Jones, A. R. Hyland, Infrared spectra of WN stars. I - HD 50896 The Astrophysical Journal. ,vol. 271, pp. 221- 236 ,(1983) , 10.1086/161189
Alex de Koter, Sara R. Heap, Ivan Hubeny, An Empirical Isochrone of Very Massive Stars in R136a The Astrophysical Journal. ,vol. 509, pp. 879- 896 ,(1998) , 10.1086/306503
Augusto Damineli, Andreas Kaufer, Bernhard Wolf, Otmar Stahl, Dalton F. Lopes, Francisco X. de Araújo, η Carinae: Binarity Confirmed The Astrophysical Journal. ,vol. 528, pp. L101- L104 ,(2000) , 10.1086/312441
J. I. Castor, D. C. Abbott, R. I. Klein, Radiation-driven winds in Of stars The Astrophysical Journal. ,vol. 195, pp. 157- 174 ,(1975) , 10.1086/153315
R. Melgarejo, A. M. Magalhães, A. C. Carciofi, C. V. Rodrigues, S 111 and the polarization of the B[e] supergiants in the Magellanic Clouds Astronomy and Astrophysics. ,vol. 377, pp. 581- 588 ,(2001) , 10.1051/0004-6361:20011141