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Abstract:

We present a general method for solving the non-linear differential equation of monotonically increasing steady-state radiation driven winds. We graphically identify all the singular points before transforming the momentum equation to a system of differential equations with all the gradients explicitly given. This permits a topological classification of all singular points and to calculate the maximum and minimum mass-loss of the wind. We use our method to analyse for the first time the topology of the non-rotating frozen-in ionisation m-CAK wind, with the inclusion of the finite disk correction factor, and find up to 4 singular points, three of the x-type and one attractor-type. The only singular point (and solution passing through) that satisfies the boundary condition at the stellar surface is the standard m-CAK singular point. © 2007 WILEY-VCH Verlag GmbH & Co. KGaA.

Registro:

Documento: Artículo
Título:A new numerical method for solving radiation driven winds from hot stars
Autor:Curé, M.; Rial, D.F.
Filiación:Departamento de Física y Astronomía, Facultad de Ciencias, Universidad de Valparaíso, Chile
Departamento de Matemáticas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina
Palabras clave:Hydrodynamics; Methods: analytical; Stars: early-type; Stars: mass-loss; Stars: winds, outflows
Año:2007
Volumen:328
Número:6
Página de inicio:513
Página de fin:520
DOI: http://dx.doi.org/10.1002/asna.200610748
Título revista:Astronomische Nachrichten
Título revista abreviado:Astron. Nachr.
ISSN:00046337
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046337_v328_n6_p513_Cure

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Citas:

---------- APA ----------
Curé, M. & Rial, D.F. (2007) . A new numerical method for solving radiation driven winds from hot stars. Astronomische Nachrichten, 328(6), 513-520.
http://dx.doi.org/10.1002/asna.200610748
---------- CHICAGO ----------
Curé, M., Rial, D.F. "A new numerical method for solving radiation driven winds from hot stars" . Astronomische Nachrichten 328, no. 6 (2007) : 513-520.
http://dx.doi.org/10.1002/asna.200610748
---------- MLA ----------
Curé, M., Rial, D.F. "A new numerical method for solving radiation driven winds from hot stars" . Astronomische Nachrichten, vol. 328, no. 6, 2007, pp. 513-520.
http://dx.doi.org/10.1002/asna.200610748
---------- VANCOUVER ----------
Curé, M., Rial, D.F. A new numerical method for solving radiation driven winds from hot stars. Astron. Nachr. 2007;328(6):513-520.
http://dx.doi.org/10.1002/asna.200610748