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Princicpal Component Analysis of type II supernova V band light-curves

Published online by Cambridge University Press:  01 July 2015

Lluís Galbany
Lluís Galbany*
Affiliation:
Millennium Institute of Astrophysics, Universidad de Chile, Casilla 36-D, Santiago, Chile Departamento de Astronomía, Universidad de Chile, Casilla 36-D, Santiago, Chile email: lgalbany@das.uchile.cl
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Abstract

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We present a Principal Component Analysis (PCA) of the V band light-curves of a sample of more than 100 nearby Core collapse supernovae (CC SNe) from [Anderson et al. (2014)]. We used different reference epochs in order to extract the common properties of these light-curves and searched for correlations to some physical parameters such as the burning of 56Ni, and morphological light-curve parameters such as the length of the plateau, the stretch of the light-curve, and the decrements in brightness after maximum and after the plateau. We also used these similarities to create SNe II light-curve templates that will be used in the future for standardize these objects and determine cosmological distances.

Keywords

techniques: photometricmethods: statistical(stars:) supernovae: general
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 10 , Symposium S306: Statistical Challenges in 21st Century Cosmology , May 2014 , pp. 330 - 332
Copyright
Copyright © International Astronomical Union 2015 

References

Hamuy, M. & Pinto, P. A 2002, ApJ, 566, 63Google Scholar
Anderson, J. P., González-Gaitán, S., Hamuy, M.et al. 2014, ApJ, 786, 67AGoogle Scholar