### Herschel-ATLAS/GAMA: a census of dust in optically selected galaxies from stacking at submillimetre wavelengths

N Bourne, Maarten Baes UGent and A Dariush, et al. (2012) 421(4). p.3027-3059
abstract
We use the Herschel-ATLAS survey to conduct the first large-scale statistical study of the submillimetre properties of optically selected galaxies. Using similar to 80 000 r-band selected galaxies from 126 deg2 of the GAMA survey, we stack into submillimetre imaging at 250, 350 and 500 mu m to gain unprecedented statistics on the dust emission from galaxies at z < 0.35. We find that low-redshift galaxies account for 5 per cent of the cosmic 250-mu m background (4 per cent at 350 mu m; 3 per cent at 500 mu m), of which approximately 60 per cent comes from blue and 20 per cent from red galaxies (rest-frame g-r). We compare the dust properties of different galaxy populations by dividing the sample into bins of optical luminosity, stellar mass, colour and redshift. In blue galaxies we find that dust temperature and luminosity correlate strongly with stellar mass at a fixed redshift, but red galaxies do not follow these correlations and overall have lower luminosities and temperatures. We make reasonable assumptions to account for the contaminating flux from lensing by red-sequence galaxies and conclude that galaxies with different optical colours have fundamentally different dust emission properties. Results indicate that while blue galaxies are more luminous than red galaxies due to higher temperatures, the dust masses of the two samples are relatively similar. Dust mass is shown to correlate with stellar mass, although the dust-to-stellar mass ratio is much higher for low stellar mass galaxies, consistent with the lowest mass galaxies having the highest specific star formation rates. We stack the 250 mu m-to-NUV luminosity ratio, finding results consistent with greater obscuration of star formation at lower stellar mass and higher redshift. Submillimetre luminosities and dust masses of all galaxies are shown to evolve strongly with redshift, indicating a fall in the amount of obscured star formation in ordinary galaxies over the last four billion years.
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
galaxies: evolution, galaxies: ISM, galaxies: statistics, submillimetre: diffuse background, submillimetre: galaxies, DIGITAL SKY SURVEY, DEEP-FIELD-SOUTH, STAR-FORMATION HISTORY, INFRARED LUMINOSITY FUNCTIONS, SPECTRAL ENERGY-DISTRIBUTIONS, COLOR-MAGNITUDE DIAGRAM, EXTRAGALACTIC SURVEY SHADES, VIRGO CLUSTER GALAXIES, INITIAL MASS FUNCTION, 250 MU-M
journal title
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Mon. Not. Roy. Astron. Soc.
volume
421
issue
4
pages
3027 - 3059
Web of Science type
Review
Web of Science id
000302620700027
JCR category
ASTRONOMY & ASTROPHYSICS
JCR impact factor
5.521 (2012)
JCR rank
9/56 (2012)
JCR quartile
1 (2012)
ISSN
0035-8711
DOI
10.1111/j.1365-2966.2012.20528.x
language
English
UGent publication?
yes
classification
A1
I have transferred the copyright for this publication to the publisher
id
2113463
handle
http://hdl.handle.net/1854/LU-2113463
date created
2012-05-25 14:44:09
date last changed
2012-05-30 10:15:42
```@article{2113463,
abstract     = {We use the Herschel-ATLAS survey to conduct the first large-scale statistical study of the submillimetre properties of optically selected galaxies. Using similar to 80 000 r-band selected galaxies from 126 deg2 of the GAMA survey, we stack into submillimetre imaging at 250, 350 and 500 mu m to gain unprecedented statistics on the dust emission from galaxies at z {\textlangle} 0.35. We find that low-redshift galaxies account for 5 per cent of the cosmic 250-mu m background (4 per cent at 350 mu m; 3 per cent at 500 mu m), of which approximately 60 per cent comes from blue and 20 per cent from red galaxies (rest-frame g-r). We compare the dust properties of different galaxy populations by dividing the sample into bins of optical luminosity, stellar mass, colour and redshift. In blue galaxies we find that dust temperature and luminosity correlate strongly with stellar mass at a fixed redshift, but red galaxies do not follow these correlations and overall have lower luminosities and temperatures. We make reasonable assumptions to account for the contaminating flux from lensing by red-sequence galaxies and conclude that galaxies with different optical colours have fundamentally different dust emission properties. Results indicate that while blue galaxies are more luminous than red galaxies due to higher temperatures, the dust masses of the two samples are relatively similar. Dust mass is shown to correlate with stellar mass, although the dust-to-stellar mass ratio is much higher for low stellar mass galaxies, consistent with the lowest mass galaxies having the highest specific star formation rates. We stack the 250 mu m-to-NUV luminosity ratio, finding results consistent with greater obscuration of star formation at lower stellar mass and higher redshift. Submillimetre luminosities and dust masses of all galaxies are shown to evolve strongly with redshift, indicating a fall in the amount of obscured star formation in ordinary galaxies over the last four billion years.},
author       = {Bourne, N and Maddox, SJ and Dunne, L and Auld, R and Baes, Maarten and Baldry, IK and Bonfield, DG and Cooray, A and Croom, SM and Dariush, A and de Zotti, G and Driver, SP and Dye, S and Eales, S and Gomez, HL and Gonz{\'a}lez-Nuevo, J and Hopkins, AM and Ibar, E and Jarvis, MJ and Lapi, A and Madore, B and Michalowski, MJ and Pohlen, M and Popescu, CC and Rigby, EE and Seibert, M and Smith, DJB and Tuffs, RJ and van der Werf, P and Brough, S and Buttiglione, S and Cava, A and Clements, DL and Conselice, CJ and Fritz, Jacopo and Hopwood, R and Ivison, RJ and Jones, DH and Kelvin, LS and Liske, J and Loveday, J and Norberg, P and Robotham, ASG and Rodighiero, G and Temi, P},
issn         = {0035-8711},
journal      = {MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY},
keyword      = {galaxies: evolution,galaxies: ISM,galaxies: statistics,submillimetre: diffuse background,submillimetre: galaxies,DIGITAL SKY SURVEY,DEEP-FIELD-SOUTH,STAR-FORMATION HISTORY,INFRARED LUMINOSITY FUNCTIONS,SPECTRAL ENERGY-DISTRIBUTIONS,COLOR-MAGNITUDE DIAGRAM,EXTRAGALACTIC SURVEY SHADES,VIRGO CLUSTER GALAXIES,INITIAL MASS FUNCTION,250 MU-M},
language     = {eng},
number       = {4},
pages        = {3027--3059},
title        = {Herschel-ATLAS/GAMA: a census of dust in optically selected galaxies from stacking at submillimetre wavelengths},
url          = {http://dx.doi.org/10.1111/j.1365-2966.2012.20528.x},
volume       = {421},
year         = {2012},
}

```
Chicago
Bourne, N, SJ Maddox, L Dunne, R Auld, Maarten Baes, IK Baldry, DG Bonfield, et al. 2012. “Herschel-ATLAS/GAMA: a Census of Dust in Optically Selected Galaxies from Stacking at Submillimetre Wavelengths.” Monthly Notices of the Royal Astronomical Society 421 (4): 3027–3059.
APA
Bourne, N., Maddox, S., Dunne, L., Auld, R., Baes, M., Baldry, I., Bonfield, D., et al. (2012). Herschel-ATLAS/GAMA: a census of dust in optically selected galaxies from stacking at submillimetre wavelengths. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 421(4), 3027–3059.
Vancouver
1.
Bourne N, Maddox S, Dunne L, Auld R, Baes M, Baldry I, et al. Herschel-ATLAS/GAMA: a census of dust in optically selected galaxies from stacking at submillimetre wavelengths. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. 2012;421(4):3027–59.
MLA
Bourne, N, SJ Maddox, L Dunne, et al. “Herschel-ATLAS/GAMA: a Census of Dust in Optically Selected Galaxies from Stacking at Submillimetre Wavelengths.” MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 421.4 (2012): 3027–3059. Print.