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dc.contributor.authorWright, A. H.
dc.contributor.authorRobotham, A. S. G.
dc.contributor.authorDriver, S. P.
dc.contributor.authorAlpaslan, M.
dc.contributor.authorAndrews, S. K.
dc.contributor.authorBaldry, I. K.
dc.contributor.authorBland-Hawthorn, J.
dc.contributor.authorBrough, S.
dc.contributor.authorBrown, M. J. I.
dc.contributor.authorColless, M.
dc.contributor.authorda Cunha, E.
dc.contributor.authorDavies, L. J. M.
dc.contributor.authorGraham, Alister W.
dc.contributor.authorHolwerda, B. W.
dc.contributor.authorHopkins, A. M.
dc.contributor.authorKafle, P. R.
dc.contributor.authorKelvin, L. S.
dc.contributor.authorLoveday, J.
dc.contributor.authorMaddox, S. J.
dc.contributor.authorMeyer, M. J.
dc.contributor.authorMoffett, A. J.
dc.contributor.authorNorberg, P.
dc.contributor.authorPhillipps, S.
dc.contributor.authorRowlands, K.
dc.contributor.authorTaylor, E. N.
dc.contributor.authorWang, L.
dc.contributor.authorWilkins, S. M.
dc.date.accessioned2018-01-18T16:30:07Z
dc.date.available2018-01-18T16:30:07Z
dc.date.issued2017-08
dc.identifier.citationWright , A H , Robotham , A S G , Driver , S P , Alpaslan , M , Andrews , S K , Baldry , I K , Bland-Hawthorn , J , Brough , S , Brown , M J I , Colless , M , da Cunha , E , Davies , L J M , Graham , A W , Holwerda , B W , Hopkins , A M , Kafle , P R , Kelvin , L S , Loveday , J , Maddox , S J , Meyer , M J , Moffett , A J , Norberg , P , Phillipps , S , Rowlands , K , Taylor , E N , Wang , L & Wilkins , S M 2017 , ' Galaxy And Mass Assembly (GAMA) : the galaxy stellar mass function to z=0.1 from the r -band selected equatorial regions ' , Monthly Notices of the Royal Astronomical Society , vol. 470 , no. 1 , pp. 283-302 . https://doi.org/10.1093/mnras/stx1149en
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 252089706
dc.identifier.otherPURE UUID: 99f0e15d-5292-4a99-87d4-e72da9f479ec
dc.identifier.otherArXiv: http://arxiv.org/abs/1705.04074v1
dc.identifier.otherScopus: 85021787881
dc.identifier.otherWOS: 000406842600020
dc.identifier.urihttp://hdl.handle.net/10023/12511
dc.description.abstractWe derive the low-redshift galaxy stellar mass function (GSMF), inclusive of dust corrections, for the equatorial Galaxy And Mass Assembly (GAMA) data set covering 180 deg2. We construct the mass function using a density-corrected maximum volume method, using masses corrected for the impact of optically thick and thin dust. We explore the galactic bivariate brightness plane (M⋆–μ), demonstrating that surface brightness effects do not systematically bias our mass function measurement above 107.5 M⊙. The galaxy distribution in the M–μ plane appears well bounded, indicating that no substantial population of massive but diffuse or highly compact galaxies are systematically missed due to the GAMA selection criteria. The GSMF is fitted with a double Schechter function, with M⋆=1010.78±0.01±0.20 M⊙, ϕ^⋆_1=(2.93±0.40)×10−3h^3_70 Mpc−3, α1 = −0.62 ± 0.03 ± 0.15, ϕ^⋆_2=(0.63±0.10)×10−3h^3_70 Mpc−3 and α2 = −1.50 ± 0.01 ± 0.15. We find the equivalent faint end slope as previously estimated using the GAMA-I sample, although we find a higher value of M⋆. Using the full GAMA-II sample, we are able to fit the mass function to masses as low as 107.5  M⊙, and assess limits to 106.5  M⊙. Combining GAMA-II with data from G10-COSMOS, we are able to comment qualitatively on the shape of the GSMF down to masses as low as 106 M⊙. Beyond the well-known upturn seen in the GSMF at 109.5, the distribution appears to maintain a single power-law slope from 109 to 106.5. We calculate the stellar mass density parameter given our best-estimate GSMF, finding Ω⋆=1.66^+0.24_−0.23±0.97 h^−1_70×10−3, inclusive of random and systematic uncertainties.
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Societyen
dc.rights© 2017, the Author(s). This work has been made available online in accordance with the publisher’s policies. This is the final published version of the work, which was originally published at https://doi.org/10.1093/mnras/stx1149en
dc.subjectGalaxies: evolutionen
dc.subjectGalaxies: fundamental parametersen
dc.subjectGalaxies: generalen
dc.subjectGalaxies: luminosity function, mass functionen
dc.subjectGalaxies: stellar contenten
dc.subjectQB Astronomyen
dc.subjectQC Physicsen
dc.subject3rd-DASen
dc.subjectBDCen
dc.subject.lccQBen
dc.subject.lccQCen
dc.titleGalaxy And Mass Assembly (GAMA) : the galaxy stellar mass function to z=0.1 from the r-band selected equatorial regionsen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.School of Physics and Astronomyen
dc.identifier.doihttps://doi.org/10.1093/mnras/stx1149
dc.description.statusPeer revieweden
dc.identifier.urlhttps://arxiv.org/abs/1705.04074v1en


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