Super-massive stars: Radiative transfer

Details Super-massive stars: Radiative transfer Super-massive stars: Radiative transfer

2003-02-26

arxiv.org/abs/astro-ph/0302548v1

Astronomy and Astrophysics

Astrophysics

2 pages, to appear in "Galatic Dynamics", eds. C. Boily, P. Patsis, C. Theis, S. Portegies Zwart, R. Spurzem, EDP Sciences 200

Scientific paper

The concept of central super-massive stars (${\cal M} \ge 5 \times 10^4 M_{\odot}$, where ${\cal M}$ is the mass of the super-massive star) embedded in dense stellar systems was suggested as a possible explanation for high- energy emissions phenomena occurring in active galactic nuclei and quasars (Vilkoviski 1976, Hara 1978), such as X-ray emissions (Bahcall and Ostriker, 1975). SMSs and super-massive black holes are two possibilities to explain the nature of super-massive central objects, and super-massive stars may be an intermediate step towards the formation of super-massive black holes (Rees 1984). Therefore it is important to study such a dense gas-star system in detail. We address here the implementation of radiative transfer in a model which was presented in former work (Amaro-Seoane and Spurzem 2001, Amaro-Seoane et al. 2002). In this sense, we extend here and improve the work done by Langbein et al. (1990) by describing the radiative transfer in super-massive stars using previous work on this subject (Castor 1972).

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