Herschel-ATLAS: the surprising diversity of dust-selected galaxies in the local submillimetre Universe

Herschel-ATLAS: the surprising diversity of dust-selected galaxies in the local submillimetre Universe. Clark, C. J. R., Dunne, L., Gomez, H. L., Maddox, S., De Vis, P., Smith, M. W. L., Eales, S. A., Baes, M., Bendo, G. J., Bourne, N., Driver, S. P., Dye, S., Furlanetto, C., Grootes, M. W., Ivison, R. J., Schofield, S. P., Robotham, A. S. G., Rowlands, K., Valiante, E., Vlahakis, C., van der Werf, P., Wright, A. H., & de Zotti, G. Monthly Notices of the Royal Astronomical Society, 452:397–430, September, 2015.

Paper doi abstract bibtex

We present the properties of the first 250 μm blind sample of nearby galaxies (15 \textless D \textless 46 Mpc) containing 42 objects from the Herschel Astrophysical Terahertz Large Area Survey. Herschel's sensitivity probes the faint end of the dust luminosity function for the first time, spanning a range of stellar mass (7.4 \textless M⋆ \textless 11.3 log10 M⊙), star formation activity (-11.8 \textless SSFR \textless -8.9 log10 yr-1), gas fraction (3-96 per cent), and colour (0.6 \textless FUV-KS \textless 7.0 mag). The median cold dust temperature is 14.6 K, colder than in the Herschel Reference Survey (18.5 K) and Planck Early Release Compact Source Catalogue (17.7 K). The mean dust-to-stellar mass ratio in our sample is higher than these surveys by factors of 3.7 and 1.8, with a dust mass volume density of (3.7 ± 0.7) × 105 M⊙ Mpc-3. Counter-intuitively, we find that the more dust rich a galaxy, the lower its UV attenuation. Over half of our dust-selected sample are very blue in FUV-KS colour, with irregular and/or highly flocculent morphology; these galaxies account for only 6 per cent of the sample's stellar mass but contain over 35 per cent of the dust mass. They are the most actively star-forming galaxies in the sample, with the highest gas fractions and lowest UV attenuation. They also appear to be in an early stage of converting their gas into stars, providing valuable insights into the chemical evolution of young galaxies.

@article{clark_herschel-atlas_2015,
	title = {Herschel-{ATLAS}: the surprising diversity of dust-selected galaxies in the local submillimetre {Universe}},
	volume = {452},
	issn = {0035-8711},
	shorttitle = {Herschel-{ATLAS}},
	url = {http://adsabs.harvard.edu/abs/2015MNRAS.452..397C},
	doi = {10.1093/mnras/stv1276},
	abstract = {We present the properties of the first 250 μm blind sample of nearby 
galaxies (15 {\textless} D {\textless} 46 Mpc) containing 42 objects from the Herschel
Astrophysical Terahertz Large Area Survey. Herschel's sensitivity probes
the faint end of the dust luminosity function for the first time,
spanning a range of stellar mass (7.4 {\textless} M⋆ {\textless} 11.3
log10 M⊙), star formation activity (-11.8 {\textless}
SSFR {\textless} -8.9 log10 yr-1), gas fraction (3-96 per
cent), and colour (0.6 {\textless} FUV-KS {\textless} 7.0 mag). The median
cold dust temperature is 14.6 K, colder than in the Herschel Reference
Survey (18.5 K) and Planck Early Release Compact Source Catalogue (17.7
K). The mean dust-to-stellar mass ratio in our sample is higher than
these surveys by factors of 3.7 and 1.8, with a dust mass volume density
of (3.7 ± 0.7) × 105 M⊙
Mpc-3. Counter-intuitively, we find that the more dust rich a
galaxy, the lower its UV attenuation. Over half of our dust-selected
sample are very blue in FUV-KS colour, with irregular and/or
highly flocculent morphology; these galaxies account for only 6 per cent
of the sample's stellar mass but contain over 35 per cent of the dust
mass. They are the most actively star-forming galaxies in the sample,
with the highest gas fractions and lowest UV attenuation. They also
appear to be in an early stage of converting their gas into stars,
providing valuable insights into the chemical evolution of young
galaxies.},
	urldate = {2021-03-15},
	journal = {Monthly Notices of the Royal Astronomical Society},
	author = {Clark, C. J. R. and Dunne, L. and Gomez, H. L. and Maddox, S. and De Vis, P. and Smith, M. W. L. and Eales, S. A. and Baes, M. and Bendo, G. J. and Bourne, N. and Driver, S. P. and Dye, S. and Furlanetto, C. and Grootes, M. W. and Ivison, R. J. and Schofield, S. P. and Robotham, A. S. G. and Rowlands, K. and Valiante, E. and Vlahakis, C. and van der Werf, P. and Wright, A. H. and de Zotti, G.},
	month = sep,
	year = {2015},
	keywords = {galaxies: ISM, galaxies: evolution, galaxies: general, galaxies: irregular, infrared: galaxies, submillimetre: galaxies},
	pages = {397--430},
}

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