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The environment and characteristics of low-redshift galaxies detected by the Herschel-ATLAS.
- Source :
- Monthly Notices of the Royal Astronomical Society; Nov2011, Vol. 418 Issue 1, p64-73, 10p
- Publication Year :
- 2011
-
Abstract
- ABSTRACT We investigate the ultraviolet and optical properties and environment of low-redshift galaxies detected in the Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS) science demonstration data. We use the Sloan Digital Sky Survey seventh release and the Galaxy And Mass Assembly data base to select galaxies with mag in the redshift range 0.02 ≤ z ≤ 0.2 and look for their submillimetre counterparts in H-ATLAS. Our results show that at low redshift, H-ATLAS detects mainly blue/star-forming galaxies with a minor contribution from red systems which are highly obscured by dust. In addition we find that the colour of a galaxy rather than the local density of its environment determines whether it is detectable by H-ATLAS. The average dust temperature of galaxies that are simultaneously detected by both PACS and SPIRE is 25 ± 4 K, independent of environment. This analysis provides a glimpse of the potential of the H-ATLAS data to investigate the submillimetre properties of galaxies in the local universe. [ABSTRACT FROM AUTHOR]
- Subjects :
- GALAXIES
REDSHIFT
SCIENTIFIC surveys
SUBMILLIMETER astronomy
TEMPERATURE
UNIVERSE
Subjects
Details
- Language :
- English
- ISSN :
- 00358711
- Volume :
- 418
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- Monthly Notices of the Royal Astronomical Society
- Publication Type :
- Academic Journal
- Accession number :
- 67132633
- Full Text :
- https://doi.org/10.1111/j.1365-2966.2011.19340.x