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GAMA/H-ATLAS: the dust opacity-stellar mass surface density relation for spiral galaxies

MW Grootes, RJ Tuffs, CC Popescu, B Pastrav, E Andrae, M Gunawardhana, LS Kelvin, J Liske, M Seibert, EN Taylor, et al. (2013) ASTROPHYSICAL JOURNAL. 766(1).
abstract
We report the discovery of a well-defined correlation between B-band face-on central optical depth due to dust, tau(f)(B), and the stellar mass surface density, mu(*), of nearby (z <= 0.13) spiral galaxies: log(tau(f)(B)) = 1.12(+/- 0.11). log(mu(*)/M-circle dot kpc(-2)) -8.6(+/- 0.8). This relation was derived from a sample of spiral galaxies taken from the Galaxy and Mass Assembly (GAMA) survey, which were detected in the FIR/submillimeter (submm) in the Herschel-ATLAS science demonstration phase field. Using a quantitative analysis of the NUV attenuation-inclination relation for complete samples of GAMA spirals categorized according to stellar mass surface density, we demonstrate that this correlation can be used to statistically correct for dust attenuation purely on the basis of optical photometry and Sersic-profile morphological fits. Considered together with previously established empirical relationships of stellar mass to metallicity and gas mass, the near linearity and high constant of proportionality of the tau(f)(B) - mu(*) relation disfavors a stellar origin for the bulk of refractory grains in spiral galaxies, instead being consistent with the existence of a ubiquitous and very rapid mechanism for the growth of dust in the interstellar medium. We use the tau(f)(B) - mu(*) relation in conjunction with the radiation transfer model for spiral galaxies of Popescu & Tuffs to derive intrinsic scaling relations between specific star formation rate (SFR), stellar mass, and stellar surface density, in which attenuation of the UV light used for the measurement of SFR is corrected on an object-to-object basis. A marked reduction in scatter in these relations is achieved which we demonstrate is due to correction of both the inclination-dependent and face-on components of attenuation. Our results are consistent with a general picture of spiral galaxies in which most of the submm emission originates from grains residing in translucent structures, exposed to UV in the diffuse interstellar radiation field.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
galaxies: fundamental parameters, galaxies: ISM, extinction, dust, galaxies: spiral
journal title
ASTROPHYSICAL JOURNAL
Astrophys. J.
volume
766
issue
1
article number
59
pages
17 pages
Web of Science type
Article
Web of Science id
000316054000059
JCR category
ASTRONOMY & ASTROPHYSICS
JCR impact factor
6.28 (2013)
JCR rank
7/59 (2013)
JCR quartile
1 (2013)
ISSN
0004-637X
DOI
10.1088/0004-637X/766/1/59
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
4385749
handle
http://hdl.handle.net/1854/LU-4385749
date created
2014-05-16 11:42:11
date last changed
2017-02-28 15:00:06
@article{4385749,
  abstract     = {We report the discovery of a well-defined correlation between B-band face-on central optical depth due to dust, tau(f)(B), and the stellar mass surface density, mu(*), of nearby (z {\textlangle}= 0.13) spiral galaxies: log(tau(f)(B)) = 1.12(+/- 0.11). log(mu(*)/M-circle dot kpc(-2)) -8.6(+/- 0.8). This relation was derived from a sample of spiral galaxies taken from the Galaxy and Mass Assembly (GAMA) survey, which were detected in the FIR/submillimeter (submm) in the Herschel-ATLAS science demonstration phase field. Using a quantitative analysis of the NUV attenuation-inclination relation for complete samples of GAMA spirals categorized according to stellar mass surface density, we demonstrate that this correlation can be used to statistically correct for dust attenuation purely on the basis of optical photometry and Sersic-profile morphological fits. Considered together with previously established empirical relationships of stellar mass to metallicity and gas mass, the near linearity and high constant of proportionality of the tau(f)(B) - mu(*) relation disfavors a stellar origin for the bulk of refractory grains in spiral galaxies, instead being consistent with the existence of a ubiquitous and very rapid mechanism for the growth of dust in the interstellar medium. We use the tau(f)(B) - mu(*) relation in conjunction with the radiation transfer model for spiral galaxies of Popescu \& Tuffs to derive intrinsic scaling relations between specific star formation rate (SFR), stellar mass, and stellar surface density, in which attenuation of the UV light used for the measurement of SFR is corrected on an object-to-object basis. A marked reduction in scatter in these relations is achieved which we demonstrate is due to correction of both the inclination-dependent and face-on components of attenuation. Our results are consistent with a general picture of spiral galaxies in which most of the submm emission originates from grains residing in translucent structures, exposed to UV in the diffuse interstellar radiation field.},
  articleno    = {59},
  author       = {Grootes, MW and Tuffs, RJ and Popescu, CC and Pastrav, B and Andrae, E and Gunawardhana, M and Kelvin, LS and Liske, J and Seibert, M and Taylor, EN and Graham, AW and Baes, Maarten and Baldry, IK and Bourne, N and Brough, S and Cooray, A and Dariush, A and De Zotti, G and Driver, SP and Dunne, L and Gomez, H and Hopkins, AM and Hopwood, R and Jarvis, M and Loveday, J and Maddox, S and Madore, BF and Michalowski, Michal and Norberg, P and Parkinson, HR and Prescott, M and Robotham, ASG and Smith, DJB and Thomas, D and Valiante, E},
  issn         = {0004-637X},
  journal      = {ASTROPHYSICAL JOURNAL},
  keyword      = {galaxies: fundamental parameters,galaxies: ISM,extinction,dust,galaxies: spiral},
  language     = {eng},
  number       = {1},
  pages        = {17},
  title        = {GAMA/H-ATLAS: the dust opacity-stellar mass surface density relation for spiral galaxies},
  url          = {http://dx.doi.org/10.1088/0004-637X/766/1/59},
  volume       = {766},
  year         = {2013},
}

Chicago
Grootes, MW, RJ Tuffs, CC Popescu, B Pastrav, E Andrae, M Gunawardhana, LS Kelvin, et al. 2013. “GAMA/H-ATLAS: The Dust Opacity-stellar Mass Surface Density Relation for Spiral Galaxies.” Astrophysical Journal 766 (1).
APA
Grootes, M., Tuffs, R., Popescu, C., Pastrav, B., Andrae, E., Gunawardhana, M., Kelvin, L., et al. (2013). GAMA/H-ATLAS: the dust opacity-stellar mass surface density relation for spiral galaxies. ASTROPHYSICAL JOURNAL, 766(1).
Vancouver
1.
Grootes M, Tuffs R, Popescu C, Pastrav B, Andrae E, Gunawardhana M, et al. GAMA/H-ATLAS: the dust opacity-stellar mass surface density relation for spiral galaxies. ASTROPHYSICAL JOURNAL. 2013;766(1).
MLA
Grootes, MW, RJ Tuffs, CC Popescu, et al. “GAMA/H-ATLAS: The Dust Opacity-stellar Mass Surface Density Relation for Spiral Galaxies.” ASTROPHYSICAL JOURNAL 766.1 (2013): n. pag. Print.