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GAMA/H-ATLAS: common star formation rate indicators and their dependence on galaxy physical parameters
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dc.contributor.author | Wang, L. | |
dc.contributor.author | Norberg, P. | |
dc.contributor.author | Gunawardhana, M. L. P. | |
dc.contributor.author | Heinis, S. | |
dc.contributor.author | Baldry, I. K. | |
dc.contributor.author | Bland-Hawthorn, J. | |
dc.contributor.author | Bourne, N. | |
dc.contributor.author | Brough, S. | |
dc.contributor.author | Brown, M. J. I. | |
dc.contributor.author | Cluver, M. E. | |
dc.contributor.author | Cooray, A. | |
dc.contributor.author | da Cunha, E. | |
dc.contributor.author | Driver, S. P. | |
dc.contributor.author | Dunne, L. | |
dc.contributor.author | Dye, S. | |
dc.contributor.author | Eales, S. | |
dc.contributor.author | Grootes, M. W. | |
dc.contributor.author | Holwerda, B. W. | |
dc.contributor.author | Hopkins, A. M. | |
dc.contributor.author | Ibar, E. | |
dc.contributor.author | Ivison, R. | |
dc.contributor.author | Lacey, C. | |
dc.contributor.author | Lara-Lopez, M. A. | |
dc.contributor.author | Loveday, J. | |
dc.contributor.author | Maddox, S. J. | |
dc.contributor.author | Michałowski, M. J. | |
dc.contributor.author | Oteo, I. | |
dc.contributor.author | Owers, M. S. | |
dc.contributor.author | Popescu, C. C. | |
dc.contributor.author | Smith, D. J. B. | |
dc.contributor.author | Taylor, E. N. | |
dc.contributor.author | Tuffs, R. J. | |
dc.contributor.author | van der Werf, P. | |
dc.date.accessioned | 2016-09-01T12:30:18Z | |
dc.date.available | 2016-09-01T12:30:18Z | |
dc.date.issued | 2016-09-11 | |
dc.identifier | 245501407 | |
dc.identifier | 8811a33f-c2be-4216-a9b0-990122b9bf37 | |
dc.identifier | 84982267384 | |
dc.identifier | 000383273600056 | |
dc.identifier.citation | Wang , L , Norberg , P , Gunawardhana , M L P , Heinis , S , Baldry , I K , Bland-Hawthorn , J , Bourne , N , Brough , S , Brown , M J I , Cluver , M E , Cooray , A , da Cunha , E , Driver , S P , Dunne , L , Dye , S , Eales , S , Grootes , M W , Holwerda , B W , Hopkins , A M , Ibar , E , Ivison , R , Lacey , C , Lara-Lopez , M A , Loveday , J , Maddox , S J , Michałowski , M J , Oteo , I , Owers , M S , Popescu , C C , Smith , D J B , Taylor , E N , Tuffs , R J & van der Werf , P 2016 , ' GAMA/H-ATLAS: common star formation rate indicators and their dependence on galaxy physical parameters ' , Monthly Notices of the Royal Astronomical Society , vol. 461 , no. 2 , pp. 1898-1916 . https://doi.org/10.1093/mnras/stw1450 | en |
dc.identifier.issn | 0035-8711 | |
dc.identifier.uri | https://hdl.handle.net/10023/9411 | |
dc.description | SD acknowledges support from a STFC Ernest Rutherford fellowship. | en |
dc.description.abstract | We compare common star formation rate (SFR) indicators in the local Universe in the Galaxy and Mass Assembly (GAMA) equatorial fields (~160 deg2), using ultraviolet (UV) photometry from GALEX, far-infrared and sub-millimetre (sub-mm) photometry from Herschel Astrophysical Terahertz Large Area Survey, and Hα spectroscopy from the GAMA survey. With a high-quality sample of 745 galaxies (median redshift 〈z〉 = 0.08), we consider three SFR tracers: UV luminosity corrected for dust attenuation using the UV spectral slope β (SFRUV, corr), Hα line luminosity corrected for dust using the Balmer decrement (BD) (SFRHα, corr), and the combination of UV and infrared (IR) emission (SFRUV + IR). We demonstrate that SFRUV, corr can be reconciled with the other two tracers after applying attenuation corrections by calibrating Infrared excess (IRX; i.e. the IR to UV luminosity ratio) and attenuation in the Hα (derived from BD) against β. However, β, on its own, is very unlikely to be a reliable attenuation indicator. We find that attenuation correction factors depend on parameters such as stellar mass (M*), z and dust temperature (Tdust), but not on Hα equivalent width or Sérsic index. Due to the large scatter in the IRX versus β correlation, when compared to SFRUV + IR, the β-corrected SFRUV, corr exhibits systematic deviations as a function of IRX, BD and Tdust. | |
dc.format.extent | 19 | |
dc.format.extent | 3484378 | |
dc.language.iso | eng | |
dc.relation.ispartof | Monthly Notices of the Royal Astronomical Society | en |
dc.subject | Galaxies: photometry | en |
dc.subject | Galaxies: statistics | en |
dc.subject | Infrared: galaxies | en |
dc.subject | Methods: statistical | en |
dc.subject | Ultraviolet: galaxies | en |
dc.subject | QB Astronomy | en |
dc.subject | QC Physics | en |
dc.subject | Astronomy and Astrophysics | en |
dc.subject | Space and Planetary Science | en |
dc.subject | NDAS | en |
dc.subject.lcc | QB | en |
dc.subject.lcc | QC | en |
dc.title | GAMA/H-ATLAS: common star formation rate indicators and their dependence on galaxy physical parameters | en |
dc.type | Journal article | en |
dc.contributor.institution | University of St Andrews. School of Physics and Astronomy | en |
dc.identifier.doi | 10.1093/mnras/stw1450 | |
dc.description.status | Peer reviewed | en |
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