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dc.contributor.authorWang, L.
dc.contributor.authorNorberg, P.
dc.contributor.authorGunawardhana, M. L. P.
dc.contributor.authorHeinis, S.
dc.contributor.authorBaldry, I. K.
dc.contributor.authorBland-Hawthorn, J.
dc.contributor.authorBourne, N.
dc.contributor.authorBrough, S.
dc.contributor.authorBrown, M. J. I.
dc.contributor.authorCluver, M. E.
dc.contributor.authorCooray, A.
dc.contributor.authorda Cunha, E.
dc.contributor.authorDriver, S. P.
dc.contributor.authorDunne, L.
dc.contributor.authorDye, S.
dc.contributor.authorEales, S.
dc.contributor.authorGrootes, M. W.
dc.contributor.authorHolwerda, B. W.
dc.contributor.authorHopkins, A. M.
dc.contributor.authorIbar, E.
dc.contributor.authorIvison, R.
dc.contributor.authorLacey, C.
dc.contributor.authorLara-Lopez, M. A.
dc.contributor.authorLoveday, J.
dc.contributor.authorMaddox, S. J.
dc.contributor.authorMichałowski, M. J.
dc.contributor.authorOteo, I.
dc.contributor.authorOwers, M. S.
dc.contributor.authorPopescu, C. C.
dc.contributor.authorSmith, D. J. B.
dc.contributor.authorTaylor, E. N.
dc.contributor.authorTuffs, R. J.
dc.contributor.authorvan der Werf, P.
dc.identifier.citationWang , 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 .
dc.descriptionSD acknowledges support from a STFC Ernest Rutherford fellowship.en
dc.description.abstractWe 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.relation.ispartofMonthly Notices of the Royal Astronomical Societyen
dc.subjectGalaxies: photometryen
dc.subjectGalaxies: statisticsen
dc.subjectInfrared: galaxiesen
dc.subjectMethods: statisticalen
dc.subjectUltraviolet: galaxiesen
dc.subjectQB Astronomyen
dc.subjectQC Physicsen
dc.subjectAstronomy and Astrophysicsen
dc.subjectSpace and Planetary Scienceen
dc.titleGAMA/H-ATLAS: common star formation rate indicators and their dependence on galaxy physical parametersen
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.description.statusPeer revieweden

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