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Self-shielding clumps in starburst clusters

Published online by Cambridge University Press:  31 March 2017

Jan Palouš ,
Richard Wünsch ,
Soňa Ehlerová  and
Guillermo Tenorio-Tagle
Jan Palouš
Affiliation:
Astronomical Institute of the CAS, Boční II 1401, 141 31 Prague 4, Czech Republic email:palous@ig.cas.cz
Richard Wünsch
Affiliation:
Astronomical Institute of the CAS, Boční II 1401, 141 31 Prague 4, Czech Republic email:palous@ig.cas.cz
Soňa Ehlerová
Affiliation:
Astronomical Institute of the CAS, Boční II 1401, 141 31 Prague 4, Czech Republic email:palous@ig.cas.cz
Guillermo Tenorio-Tagle
Affiliation:
Instituto Nacional de Astrofí sica Optica y Electronica, AP 51, 72000 Puebla, Mexico email: guillermotenoriotagle@gmail.com
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Abstract

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Young and massive star clusters above a critical mass form thermally unstable clumps reducing locally the temperature and pressure of the hot 107 K cluster wind. The matter reinserted by stars, and mass loaded in interactions with pristine gas and from evaporating circumstellar disks, accumulate on clumps that are ionized with photons produced by massive stars. We discuss if they may become self-shielded when they reach the central part of the cluster, or even before it, during their free fall to the cluster center. Here we explore the importance of heating efficiency of stellar winds.

Keywords

Globular clusters: generalStars: formationHydrodynamics
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S316: Formation, evolution, and survival of massive star clusters , August 2015 , pp. 251 - 252
Copyright
Copyright © International Astronomical Union 2017 

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