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Abstract:

Solutions for the stellar winds of hot luminous stars are obtained by solving the magnetohydrodynamic (MHD) equations combined with the radiatively driven outflow formalism given by Castor, Abbott, & Klein. We consider the interaction of radiation pressure and collimated magnetic fields for a nonrotating star. The streamline shape has been prescribed from a phenomenological point of view. In order to decouple the MHD equations, we assume all the lines contributing to the radiation pressure are optically thick. Spherically and nonspherically symmetric mass distributions are considered. In both cases, the dependence of the terminal velocity on the star luminosity and magnetic strength is discussed. It is found that the terminal flow speed is strongly affected by slight variations of both the luminosity and the mass distribution asymmetry but shows a weak correlation with the magnetic field intensity. The present formalism can be thought of as a wide generalization of the MHD solutions introduced by Low & Tsinganos. Highly collimated magnetic structures, as well as rotation, are considered in another paper. © 1996. The American Astronomical Society. All rights reserved.

Registro:

Documento: Artículo
Título:Radiation-driven magnetohydrodynamic wind solutions for hot luminous stars
Autor:Rotstein, N.; De Castro, C.G.G.
Filiación:Instituto de Astronomía y Física del Espacio (CONICET-UBA), Casilla de Correo 67, Sucursal 28, 1428 Buenos Aires, Argentina
Palabras clave:MHD; Stars: magnetic fields; Stars: mass loss
Año:1996
Volumen:464
Número:2 PART I
Página de inicio:859
Página de fin:866
DOI: http://dx.doi.org/10.1086/177373
Título revista:Astrophysical Journal
Título revista abreviado:Astrophys. J.
ISSN:0004637X
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0004637X_v464_n2PARTI_p859_Rotstein

Referencias:

  • Abbott, D.C., (1978) ApJ, 225, p. 893
  • (1982) ApJ, 259, p. 282
  • Abbott, D.C., Conti, P., (1987) ARA&A, 25, p. 113
  • Casinelli, J.P., (1979) ARA&A, 17, p. 275
  • (1982) IAU Symp., 99, p. 173. , Wolf-Rayet Stars: Observations, Physics and Evolution, ed. C. de Loore & A. J. Willis (Dordrecht: Reidel)
  • (1992) ASP Conf. Ser., 22, p. 134. , Nonisotropic and Variable Outflows from Stars, ed. L. Drissen & C. Leitherer (San Francisco: ASP)
  • Casinelli, J.P., Schulte-Ladbeck, R.E., Poe, C.H., Abbott, M., (1989) IAU Colloq., 113, p. 121. , Physics of Luminous Blue Variables, ed. K. Davidson, A. Moffat, & H. J. G. L. M. Lamers (Dordrecht: Kluwer)
  • Castor, J.L., Abbott, D.C., Klein, R.I., (1975) ApJ, 195, p. 157. , CAK
  • Davidson, K., (1989) IAU Colloq., 113, p. 191. , Physics of Luminous Blue Variables, ed. K. Davidson, A. Moffat, & H. J. G. L. M. Lamers (Dordrecht: Kluwer)
  • Dos Santos, L.C., Jatenco-Pereira, V., Opher, R., (1993) ApJ, 410, p. 732
  • Eenens, P.R., (1992) ASP Conf. Ser., 22, p. 145. , Nonisotropic and Variable Outflows from Stars, ed. L. Drissen & C. Leitherer (San Francisco: ASP)
  • Friend, D.B., (1990) Angular Momentum and Mass Loss from Stars, p. 145. , ed. L. Willson & R. Stalio (Dordrecht: Kluwer)
  • Friend, D.B., MacGregor, K.B., (1984) ApJ, 282, p. 591
  • Fukui, Y., (1989) Proc. ESO Workshop on Low Mass Star Formation and Pre-Main-Sequence Objects, p. 95. , ed. B. Reipurth (Garching: ESO)
  • Hartmann, L., MacGregor, K.B., (1982) ApJ, 259, p. 180
  • Hu, Y.Q., Low, B.C., (1989) ApJ, 342, p. 1049
  • Knapp, G.R., Morris, M., (1985) ApJ, 292, p. 640
  • Kwan, I., Webster, Z., (1993) ApJ, 419, p. 694
  • Kwock, S., (1982) ApJ, 258, p. 280
  • Lamers, H.J.G.L.M., Leitherer, C., (1993) ApJ, 412, p. 771
  • Low, B.C., Tsinganos, K., (1986) ApJ, 302, p. 163
  • Lucy, L.B., Solomon, P.M., (1970) ApJ, 159, p. 879
  • Morton, D.C., (1967) ApJ, 150, p. 535
  • Morton, D.C., Jenkins, E.B., Brooks, N.H., (1969) ApJ, 195, p. 145
  • Pauldrach, A.W., Puls, J., Gabler, A., Gabler, R., (1990) ASP Conf. Ser., 7, p. 171. , Properties of Hot Luminous Stars, ed. C. Garmany (San Francisco: ASP)
  • Poe, C.H., Friend, D.B., (1986) ApJ, 311, p. 317
  • Rotstein, N., Ferro Fontán, C., (1995) ApJ, 449, p. 745
  • (1995) ApJ, 449, p. 764
  • Taylor, M., (1992) ASP Conf. Ser., 22, p. 57. , Nonisotropic and Variable Outflows from Stars, ed. L. Drissen & C. Leitherer (San Francisco: ASP)
  • Trussoni, E., Tsinganos, K., (1993) A&, 269, p. 589
  • Tsinganos, K., (1982) ApJ, 252, p. 775
  • Tsinganos, K., Trussoni, E., (1991) A&A, 249, p. 156
  • Tsinganos, K., Trussoni, E., Sauty, C., (1993) Physics of Solar and Stellar Coronae, p. 615. , ed. J. Linsky & S. Serio (Dordrecht: Kluwer)
  • Withbroe, G.L., (1989) Highlights Astron., 8, p. 525
  • Zickgraf, F., Schulte-Ladbeck, R.E., (1989) A&A, 214, p. 274

Citas:

---------- APA ----------
Rotstein, N. & De Castro, C.G.G. (1996) . Radiation-driven magnetohydrodynamic wind solutions for hot luminous stars. Astrophysical Journal, 464(2 PART I), 859-866.
http://dx.doi.org/10.1086/177373
---------- CHICAGO ----------
Rotstein, N., De Castro, C.G.G. "Radiation-driven magnetohydrodynamic wind solutions for hot luminous stars" . Astrophysical Journal 464, no. 2 PART I (1996) : 859-866.
http://dx.doi.org/10.1086/177373
---------- MLA ----------
Rotstein, N., De Castro, C.G.G. "Radiation-driven magnetohydrodynamic wind solutions for hot luminous stars" . Astrophysical Journal, vol. 464, no. 2 PART I, 1996, pp. 859-866.
http://dx.doi.org/10.1086/177373
---------- VANCOUVER ----------
Rotstein, N., De Castro, C.G.G. Radiation-driven magnetohydrodynamic wind solutions for hot luminous stars. Astrophys. J. 1996;464(2 PART I):859-866.
http://dx.doi.org/10.1086/177373