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Period-Luminosity-Shape of Light Curve Relation for Cepheids in LMC and SMC

Published online by Cambridge University Press:  26 May 2016

P. Ligeza ,
P. Moskalik  and
A. Schwarzenberg-Czerny
P. Ligeza
Affiliation:
1Astronomical Observatory of Adam Mickiewicz University, ul. Sloneczna 36, PL-61 286, Poznan, Poland, piotrl@amu.edu.pl
P. Moskalik
Affiliation:
2Copernicus Astronomical Center of Polish Academy of Science, ul. Bartycka 18, PL-00 716, Warsaw, Poland, alex@camk.edu.pl, pam@camk.edu.pl
A. Schwarzenberg-Czerny
Affiliation:
1Astronomical Observatory of Adam Mickiewicz University, ul. Sloneczna 36, PL-61 286, Poznan, Poland, piotrl@amu.edu.pl 2Copernicus Astronomical Center of Polish Academy of Science, ul. Bartycka 18, PL-00 716, Warsaw, Poland, alex@camk.edu.pl, pam@camk.edu.pl

Abstract

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In this paper we report our analysis of the period-luminosity-shape of light curve (P-L-S) relation. The data we used came from LMC and SMC Cepheid light curves produced by OGLE-II microlensing survey. We used Principal Components Analysis of covariance matrix of the sets for Cepheids in LMC and SMC separately. Our calibrating set was bounded to long period classical Cepheids pulsating in fundamental mode. The results are used to derive a method for estimation of distances from light curve shape.

Type
Part XII: Poster Papers
Information
Symposium - International Astronomical Union , Volume 201: New Cosmological Data and the Values of the Fundamental Parameters , 2005 , pp. 480 - 481
Copyright
Copyright © Astronomical Society of the Pacific 2005 

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