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Far-infrared and sub-millimeter properties of SDSS galaxies in the Herschel ATLAS SDP Field

Published online by Cambridge University Press:  17 August 2012

Man I. Lam ,
Hong Wu  and
Yi-Nan Zhu
Man I. Lam
Affiliation:
National Astronomical Observatories, CAS Beijing, 100012, P. R. China email: hwu@bao.ac.cn Graduate University of the Chinese Academy of Sciences, Beijing, 100049, P. R. China
Hong Wu
Affiliation:
National Astronomical Observatories, CAS Beijing, 100012, P. R. China email: hwu@bao.ac.cn
Yi-Nan Zhu
Affiliation:
National Astronomical Observatories, CAS Beijing, 100012, P. R. China email: hwu@bao.ac.cn
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Abstract

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Using data from the new infrared facility the Herschel Space Observatory, we have analyzed correlations between morphological type, far-infrared (FIR) luminosity, and Hα luminosity for star-forming galaxies, composite galaxies, and AGNs. We found a trend in scatter from 100μm to 500μm, which indicates that the submillimeter bands are not a good star formation tracer in these galaxies, being contaminated either by the old stellar population or by the interstellar medium (ISM). AGNs have no significant effect on our fitting results since the far-infrared to submillimeter emission is from cold dust/large dust grains.

Keywords

galaxies: starburstgalaxies: ISMgalaxies:classificationinfrared: galaxies
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 7 , Symposium S284: The Spectral Energy Distribution of Galaxies , September 2011 , pp. 286 - 288
Copyright
Copyright © International Astronomical Union 2012

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