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Phillipps, S, Bellstedt, S, Bremer, MN, De Propris, R, James, PA, Casura, S, Liske, J and Holwerda, BW (2022) Galaxy And Mass Assembly (GAMA): the dependence of star formation on surface brightness in low-redshift galaxies. Monthly Notices of the Royal Astronomical Society, 518 (4). pp. 5475-5482. ISSN 0035-8711
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Galaxy And Mass Assembly GAMA the dependence of star formation on surface brightness in low redshift galaxies.pdf - Published Version Download (2MB) | Preview |
Abstract
The star-formation rate in galaxies is well known to correlate with stellar mass (the 'star-forming main sequence'). Here, we extend this further to explore any additional dependence on galaxy surface brightness, a proxy for stellar mass surface density. We use a large sample of low-redshift (z ≤ 0.08) galaxies from the Galaxy And Mass Assembly survey which have both spectral energy distribution (SED) derived star-formation rates and photometric bulge-disc decompositions, the latter providing measures of disc surface brightness and disc masses. Using two samples, one of galaxies fitted by a single component with Sersic index below 2 and one of the discs from two-component fits, we find that once the overall mass dependence of star-formation rate is accounted for, there is no evidence in either sample for a further dependence on stellar surface density.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | 0201 Astronomical and Space Sciences; Astronomy & Astrophysics |
| Subjects: | Q Science > QB Astronomy Q Science > QC Physics |
| Divisions: | Astrophysics Research Institute |
| Publisher: | Oxford University Press |
| SWORD Depositor: | A Symplectic |
| Date Deposited: | 08 Oct 2024 15:44 |
| Last Modified: | 08 Oct 2024 15:45 |
| DOI or ID number: | 10.1093/mnras/stac3440 |
| URI: | https://researchonline.ljmu.ac.uk/id/eprint/24458 |
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