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Measuring the true supernova rate in galaxies

Published online by Cambridge University Press:  26 May 2016

Mark R. Kidger  and
Fabiola Martín-Luis
Mark R. Kidger
Affiliation:
Instituto de Astrofísica de Canarias, c/vía Láctea s/n, E-38205 La Laguna, Tenerife, España
Fabiola Martín-Luis
Affiliation:
Instituto de Astrofísica de Canarias, c/vía Láctea s/n, E-38205 La Laguna, Tenerife, España

Abstract

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One of the best tracers of massive stars is the rate of supernovae in galaxies. Studies of the supernova rate in galaxies are though severely affected by the line of sight extinction. Geometrical effects (e.g., edgewise presentation) may lead to the majority of supernovae that appear in a galaxy being undetectable in the visible. We propose to use canaricam on the Spanish 10m Gran Telescopio Canarias to measure the true supernova rate in a sample of galaxies, independent of extinction and line of sight effects, by measuring at 10 μm where the extinction is almost negligible. This system allows Type Ia SNe to be detected out to 100 Mpc in 120 s of integration, thus 360 galaxies per year for which we are sensitive to SNe can be covered per hour of telescope time per month.

Type
Part 2. Interiors of Massive Stars
Information
Symposium - International Astronomical Union , Volume 212: A Massive Star Odyssey: From Main Sequence to Supernova , 2003 , pp. 414 - 415
Copyright
Copyright © Astronomical Society of the Pacific 2003 

References

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