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High angular resolution radio and infrared view of optically dark supernovae in luminous infrared galaxies

Published online by Cambridge University Press:  28 July 2017

Seppo Mattila ,
Erkki Kankare ,
Erik Kool ,
Cristina Romero-Cañizales ,
Stuart Ryder  and
Miguel Perez-Torres
Seppo Mattila
Affiliation:
Tuorla observatory, University of Turku, 21500 Kaarina, Finland, email: sepmat@utu.fi
Erkki Kankare
Affiliation:
Astrophysics Research Centre, Queen’s University Belfast, Belfast, UK
Erik Kool
Affiliation:
Department of Physics & Astronomy, Macquarie University, Sydney, Australia Australian Astronomical Observatory, Sydney, Australia
Cristina Romero-Cañizales
Affiliation:
Millennium Institute of Astrophysics & Universidad Diego Portales, Chile
Stuart Ryder
Affiliation:
Australian Astronomical Observatory, Sydney, Australia
Miguel Perez-Torres
Affiliation:
Instituto de Astrofisica de Andalucia, Granada, Spain
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Abstract

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In luminous and ultraluminous infrared galaxies (U/LIRGs), the infall of gas into the central regions strongly enhances the star formation rate (SFR), especially within the nuclear regions which have also large amounts of interstellar dust. Within these regions SFRs of several tens to hundreds of solar masses per year ought to give rise to core-collapse supernova (SN) rates up to 1-2 SNe every year per galaxy. However, the current SN surveys, almost exclusively being ground-based seeing-limited and working at optical wavelengths, have been blinded by the interstellar dust and contrast issues therein. Thus the properties and rates of SNe in the nuclear environments of the most prolific SN factories in the Universe have remained largely unexplored. Here, we present results from high angular resolution observations of nearby LIRGs at infrared and radio wavelengths much less affected by the effects of extinction and lack of resolution hampering the optical searches.

Keywords

supernovae: generaldust extinctiongalaxies: nucleigalaxies: starburstinfrared: galaxiesinstrumentation: adaptive opticsinstrumentation: high angular resolution
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S329: The Lives and Death-Throes of Massive Stars , November 2016 , pp. 332 - 336
Copyright
Copyright © International Astronomical Union 2017 

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