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Toward more precise photometric redshift estimation

Published online by Cambridge University Press:  01 December 2006

O. Vince  and
I. Csabai
O. Vince
Affiliation:
ELTE University of Budapest, Pazmany P. Setany 1/A Budapest, Hungary email: vince@complex.elte.hu
I. Csabai
Affiliation:
ELTE University of Budapest, Pazmany P. Setany 1/A Budapest, Hungary email: csabai@complex.elte.hu
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Abstract

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We investigate how morphological information of galaxies help us to improve photometric redshift estimation. Using a catalog of morphologically classified bright galaxies derived from the Third Data Release of the Sloan Digital Sky Survey, the statistical properties of different photometrical parameters as a function of morphology are examined. Parameters that best correlates with morphology are used as an additional information to better estimate the redhift. Improvements of several percent are obtained.

Keywords

morphologyredshiftSDSS
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S241: Stellar Populations as Building Blocks of Galaxies , December 2006 , pp. 573 - 574
Copyright
Copyright © International Astronomical Union 2007

References

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Nakamura, O., Fukugita, M., Yasuda, N., Loveday, J., Brinkmann, J., Schneider, P.D., Shimasaku, K. & SubbaRao, M. 2002, AJ 125, 1682CrossRefGoogle Scholar