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Abstract:

The effects of rapid rotation and bi-stability upon the density contrast between the equatorial and polar directions of a B[e] supergiant are re-investigated. Based on a new slow solution for different high rotational radiation-driven winds and the fact that bi-stability allows a change in the line-force parameters (α, k, and δ), the equatorial densities are about 102-104 times higher than the polar ones. These values are in qualitative agreement with the observations. © ESO 2005.

Registro:

Documento: Artículo
Título:Outflowing disk formation in B[e] supergiants due to rotation and bi-stability in radiation driven winds
Autor:Curé, M.; Rial, D.F.; Cidale, L.
Filiación:Departamento de Física y Meteorología, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso, Chile
Departamento de Matemáticas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina
Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de la Plata, La Plata, Buenos Aires, Argentina
Palabras clave:Stars: early-type; Stars: mass-loss; Stars: rotation; Stars: winds, outflows; Bifurcation (mathematics); Ionization; Mathematical models; Optical bistability; Parameter estimation; Radiation; Temperature measurement; Velocity measurement; Stars:early-type; Stars:mass-loss; Stars:rotation; Stars:winds, outflows; Astrophysics
Año:2005
Volumen:437
Número:3
Página de inicio:929
Página de fin:933
DOI: http://dx.doi.org/10.1051/0004-6361:20052686
Handle:http://hdl.handle.net/20.500.12110/paper_00046361_v437_n3_p929_Cure
Título revista:Astronomy and Astrophysics
Título revista abreviado:Astron. Astrophys.
ISSN:00046361
CODEN:AAEJA
PDF:https://bibliotecadigital.exactas.uba.ar/download/paper/paper_00046361_v437_n3_p929_Cure.pdf
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v437_n3_p929_Cure

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Citas:

---------- APA ----------
Curé, M., Rial, D.F. & Cidale, L. (2005) . Outflowing disk formation in B[e] supergiants due to rotation and bi-stability in radiation driven winds. Astronomy and Astrophysics, 437(3), 929-933.
http://dx.doi.org/10.1051/0004-6361:20052686
---------- CHICAGO ----------
Curé, M., Rial, D.F., Cidale, L. "Outflowing disk formation in B[e] supergiants due to rotation and bi-stability in radiation driven winds" . Astronomy and Astrophysics 437, no. 3 (2005) : 929-933.
http://dx.doi.org/10.1051/0004-6361:20052686
---------- MLA ----------
Curé, M., Rial, D.F., Cidale, L. "Outflowing disk formation in B[e] supergiants due to rotation and bi-stability in radiation driven winds" . Astronomy and Astrophysics, vol. 437, no. 3, 2005, pp. 929-933.
http://dx.doi.org/10.1051/0004-6361:20052686
---------- VANCOUVER ----------
Curé, M., Rial, D.F., Cidale, L. Outflowing disk formation in B[e] supergiants due to rotation and bi-stability in radiation driven winds. Astron. Astrophys. 2005;437(3):929-933.
http://dx.doi.org/10.1051/0004-6361:20052686