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Super star clusters and Supernovae in interacting LIRGs unmasked by NIR adaptive optics
Stockholm University, Faculty of Science, Department of Astronomy.
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2010 (English)In: proceedings of 'Galaxies and their Masks' (Namibia, April 2010), published by Springer / [ed] D.L. Block, K.C. Freeman, I. Puerari, 2010Conference paper (Other academic)
Abstract [en]

We report on an on-going near-IR adaptive optics survey targeting interacting luminous IR galaxies. High-spatial resolution NIR data are crucial to enable interpretation of kinematic, dynamical and star formation (SF) properties of these very dusty objects. Whole progenitor nuclei in the interactions can be missed if only optical HST imaging is used. Here we specifically present the latest results regarding core-collapse supernovae found within the highly extincted nuclear regions of these galaxies. Direct detection and study of such highly obscured CCSNe is crucial for revising the optically-derived SN rates used for providing an independent measurement of the SF history of the Universe. We also present thus-far the first NIR luminosity functions of super star cluster (SSC) candidates. The LFs can then be used to constrain the formation and evolution of SSCs via constraints based on initial mass functions and cluster disruption models.

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Keyword [en]
Astrophysics - Cosmology and Extragalactic Astrophysics
URN: urn:nbn:se:su:diva-53443OAI: diva2:391250
Available from: 2011-01-24 Created: 2011-01-23 Last updated: 2011-02-15Bibliographically approved

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Mattila, S.
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