0374566 - ASÚ 2012 GB eng C - Conference Paper (international conference)
Wünsch, Richard - Palouš, Jan - Tenorio-Tagle, G. - Silich, S. - Munoz-Tunon, C.
Super star clusters and their emission lines.
Star clusters: basic galactic building blocks throughout time and space. Cambridge: Cambridge University Press, 2010 - (DeGrijs, R.), s. 555-555. IAU Symposium Proceedings Series, IAU S266. ISBN 978-0-521-76499-5. ISSN 1743-9213.
[Symposium of the International Astronomical Union /266./. Rio de Janeiro (BR), 10.08.2009-14.08.2009]
Institutional research plan: CEZ:AV0Z10030501
Keywords : galaxies * star clusters * HII regions
Subject RIV: BN - Astronomy, Celestial Mechanics, Astrophysics

Using 2D and 3D hydrodynamic simulations, we study models of SSCs in the so-called bimodal regime, which occurs if the stellar density inside the cluster exceeds a certain limit. We confirm the existence of the bimodal solution predicted analytically and suggest an explanation for double-component line profiles: the narrow component is formed close to the cluster center by repressurizing shocks compressing the rarefied gas cooled down due to the thermal instability into dense cold clumps, while the broad component is created by the wind, which cools down at a certain distance from the cluster.
Permanent Link: http://hdl.handle.net/11104/0207459