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Red supergiants as supernova progenitors

Published online by Cambridge University Press:  27 October 2016

Ignacio Negueruela ,
Ricardo Dorda ,
Carlos González-Fernández  and
Amparo Marco
Ignacio Negueruela
Affiliation:
Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal Escuela Politécnica Superior, Universidad de Alicante Carretera de San Vicente del Raspeig s/n, E03690, San Vicente del Raspeig, Alicante, Spain email: [email protected]
Ricardo Dorda
Affiliation:
Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal Escuela Politécnica Superior, Universidad de Alicante Carretera de San Vicente del Raspeig s/n, E03690, San Vicente del Raspeig, Alicante, Spain email: [email protected]
Carlos González-Fernández
Affiliation:
Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, United Kingdom
Amparo Marco
Affiliation:
Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal Escuela Politécnica Superior, Universidad de Alicante Carretera de San Vicente del Raspeig s/n, E03690, San Vicente del Raspeig, Alicante, Spain email: [email protected]
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Abstract

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Recent searches for supernova II-P progenitors in external galaxies have led to the identification of red objects with magnitudes and colours indicative of red supergiants, in most cases implying quite low luminosities, and hence masses. Current results would suggest that all explosions come from objects less massive than ~ 18 M⊙ and that some explosions come from stars with masses well below 10 M⊙. Stellar models, on the other hand, can only produce explosions from objects more massive than > 9 M⊙. What does our knowledge of local red supergiants tell us about the expected properties of such objects? We present the results of complementary large spectroscopic surveys and detailed studies of open clusters that point to substantially different observational characteristics depending on metallicity.

Keywords

open cluster and associations: generalstars: massivesupergiantsevolution
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , General Assembly A29B: Astronomy in Focus , August 2015 , pp. 220 - 221
Copyright
Copyright © International Astronomical Union 2016 

References

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