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arXiv · 1301.4001

Far-Infrared and submillimeter properties of SDSS galaxies in the Herschel ATLAS science demonstration phase field

M. I. Lam·H. Wu·Y. -N. Zhu·Z. -M. Zhou
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Abstract

Using the Herschel ATLAS science demonstration phase data crossidentified with SDSS DR7 spectra, we select 297 galaxies with F250{\mu}m > 5{\sigma}. The sample galaxies are classified into five morphological types, and more than 40% of the galaxies are peculiar/compact galaxies. The peculiar galaxies show higher far-infrared/submillimeter luminosity-to-mass ratios than the other types. We perform and analyze the correlations of far-infrared/submillimeter and H{\alpha} luminosities for different morphological types and different spectral types. The Spearman rank coefficient decreases and the scatter increases with the wavelength increasing from 100 {\mu}m to 500 {\mu}m. We conclude that a single Herschel SPIRE band is not good for tracing star formation activities in galaxies. AGNs contribute less to the far-infrared/submillimeter luminosities and do not show a difference from star-forming galaxies. However, the earlier type galaxies present significant deviations from the best fit of star-forming galaxies.

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M. I. Lam, H. Wu, Y. -N. Zhu, Z. -M. Zhou. 2013-01-17. Far-Infrared and submillimeter properties of SDSS galaxies in the Herschel ATLAS science demonstration phase field. https://doi.org/10.1088/1674-4527/13/2/005

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