Winds driven by super-star clusters: The self-consistent radiative solution

Details Winds driven by super-star clusters: The self-consistent radiative solution Winds driven by super-star clusters: The self-consistent radiative solution

2004-04-14

arxiv.org/abs/astro-ph/0404281v1

Astrophys.J. 610 (2004) 226-232

Astronomy and Astrophysics

Astrophysics

9 pages, 5 figures, accepted for publication by The Astrophysical Journal

Scientific paper

10.1086/421702

Here we present a self-consistent stationary solution for spherically symmetric winds driven by massive star clusters under the impact of radiative cooling. We demonstrate that cooling may modify drastically the distribution of temperature if the rate of injected energy approaches a critical value. We also prove that the stationary wind solution does not exist whenever the energy radiated away at the star cluster center exceeds ~ 30% of the energy deposition rate. Finally we thoroughly discuss the expected appearance of super-star cluster winds in the X-ray and visible line regimes. The three solutions here found: the quasi-adiabatic, the strongly radiative wind and the inhibited stationary solution, are then compared to the winds from Arches cluster, NGC 4303 central cluster and to the supernebula in NGC 5253.

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