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Stellar feedback from a massive Super Star Cluster in the Antennae merger

Published online by Cambridge University Press:  31 March 2017

Cinthya N. Herrera  and
Francois Boulanger
Cinthya N. Herrera
Affiliation:
National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Japan email: cinthya.herrera@nao.ac.jp, herrera@iram.fr (present address)
Francois Boulanger
Affiliation:
Institut d’Astrophyisque Spatiale Université Paris Sud, Batiment 121, 91405 Orsay, France email: francois.boulanger@ias.u-psud.fr
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Abstract

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Stellar feedback from massive stars can unbind and disperse large amount of molecular gas, affecting the star formation efficiency. Based on ALMA and VLT observations in the Antennae galaxies we study a massive (~ 107 M⊙) and young (~ 3 Myr) SSC, B1, associated with compact molecular and ionized emission, which suggests that it is embedded in its parent cloud. However, we found contradictories and puzzling results on the structure and dynamics of the matter around the cluster, indicating that SSC B1 is not embedded in its parent cloud after all. We propose that radiation pressure was highly enhanced at the early stages of the SSC formation, disrupting the parent cloud in < 3 Myr. We show evidences of outflowing gas from the parent cloud in the more extended CO gas. Higher angular resolution observations are needed to validate this interpretation and to understand the origin and fate of the component seen to be associated with SSC B1.

Keywords

ISMgalaxies: star clustersinteractions
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. 190 - 195
Copyright
Copyright © International Astronomical Union 2017 

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