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
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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
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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
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Volumen: | 437
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Número: | 3
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Página de inicio: | 929
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Página de fin: | 933
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DOI: |
http://dx.doi.org/10.1051/0004-6361:20052686 |
Título revista: | Astronomy and Astrophysics
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Título revista abreviado: | Astron. Astrophys.
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ISSN: | 00046361
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CODEN: | AAEJA
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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