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dc.contributor.authorWilliams, R. P.
dc.contributor.authorBaldry, I. K.
dc.contributor.authorKelvin, L. S.
dc.contributor.authorJames, P. A.
dc.contributor.authorDriver, S. P.
dc.contributor.authorPrescott, M.
dc.contributor.authorBrough, S.
dc.contributor.authorBrown, M. J. I.
dc.contributor.authorDavies, L. J. M.
dc.contributor.authorHolwerda, B. W.
dc.contributor.authorLiske, J.
dc.contributor.authorNorberg, P.
dc.contributor.authorMoffett, A. J.
dc.contributor.authorWright, A. H.
dc.date.accessioned2018-01-22T16:30:07Z
dc.date.available2018-01-22T16:30:07Z
dc.date.issued2016-12
dc.identifier.citationWilliams , R P , Baldry , I K , Kelvin , L S , James , P A , Driver , S P , Prescott , M , Brough , S , Brown , M J I , Davies , L J M , Holwerda , B W , Liske , J , Norberg , P , Moffett , A J & Wright , A H 2016 , ' Galaxy And Mass Assembly (GAMA) : detection of low-surface-brightness galaxies from SDSS data ' , Monthly Notices of the Royal Astronomical Society , vol. 463 , no. 3 , pp. 2746-2755 . https://doi.org/10.1093/mnras/stw2185en
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 252098774
dc.identifier.otherPURE UUID: e4126728-49bd-45e5-b92c-ce60021531a1
dc.identifier.otherArXiv: http://arxiv.org/abs/1609.01162v1
dc.identifier.otherScopus: 85015095632
dc.identifier.otherWOS: 000393566000037
dc.identifier.urihttps://hdl.handle.net/10023/12576
dc.description.abstractWe report on a search for new low-surface-brightness galaxies (LSBGs) using Sloan Digital Sky Survey (SDSS) data within the Galaxy And Mass Assembly (GAMA) equatorial fields. The search method consisted of masking objects detected with SDSS photo, combining gri images weighted to maximize the expected signal-to-noise ratio, and smoothing the images. The processed images were then run through a detection algorithm that finds all pixels above a set threshold and groups them based on their proximity to one another. The list of detections was cleaned of contaminants such as diffraction spikes and the faint wings of masked objects. From these, selecting potentially the brightest in terms of total flux, a list of 343 LSBGs was produced having been confirmed using VISTA Kilo-degree Infrared Galaxy Survey (VIKING) imaging. The photometry of this sample was refined using the deeper VIKING Z band as the aperture-defining band. Measuring their g − i and J − K colours shows that most are consistent with being at redshifts less than 0.2. The photometry is carried out using an auto aperture for each detection giving surface brightnesses of μr ≳ 25 mag arcsec−2 and magnitudes of r > 19.8 mag. None of these galaxies are bright enough to be within the GAMA main survey limit but could be part of future deeper surveys to measure the low-mass end of the galaxy stellar mass function.
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Societyen
dc.rights© 2016 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/stw2185en
dc.subjectTechniques: image processingen
dc.subjectGalaxies: dwarfen
dc.subjectGalaxies: photometryen
dc.subjectQB Astronomyen
dc.subjectQC Physicsen
dc.subjectDASen
dc.subject.lccQBen
dc.subject.lccQCen
dc.titleGalaxy And Mass Assembly (GAMA) : detection of low-surface-brightness galaxies from SDSS dataen
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/stw2185
dc.description.statusPeer revieweden
dc.identifier.urlhttp://arxiv.org/abs/1609.01162v1en


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