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dc.contributor.authorHale, C. L.
dc.contributor.authorRobotham, A. S. G.
dc.contributor.authorDavies, L. J. M.
dc.contributor.authorJarvis, M. J.
dc.contributor.authorDriver, S. P.
dc.contributor.authorHeywood, I.
dc.date.accessioned2019-06-26T14:30:07Z
dc.date.available2019-06-26T14:30:07Z
dc.date.issued2019-08
dc.identifier.citationHale , C L , Robotham , A S G , Davies , L J M , Jarvis , M J , Driver , S P & Heywood , I 2019 , ' Radio source extraction with ProFound ' , Monthly Notices of the Royal Astronomical Society , vol. 487 , no. 3 , pp. 3971–3989 . https://doi.org/10.1093/mnras/stz1462en
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 259378985
dc.identifier.otherPURE UUID: b0d5e6ba-6eeb-4a1e-8af9-e6ebaf465e6c
dc.identifier.otherArXiv: http://arxiv.org/abs/1902.01440v2
dc.identifier.otherScopus: 85072301023
dc.identifier.urihttp://hdl.handle.net/10023/17971
dc.description.abstractIn the current era of radio astronomy, continuum surveys observe a multitude of objects with complex morphologies and sizes, and are not limited to observing point sources. Typical radio source extraction software generates catalogues by using Gaussian components to form a model of the emission. This may not be well suited to complicated jet structures and extended emission, particularly in the era of interferometers with a high density of short baselines, which are sensitive to extended emission. In this paper, we investigate how the optically motivated source detection package ProFound (Robotham et al. 2018) may be used to model radio emission of both complicated and point-like radio sources. We use a combination of observations and simulations to investigate how ProFound compares to other source extractor packages used for radio surveys. We find that ProFound can accurately recover both the flux densities of simulated Gaussian sources as well as extended radio galaxies. ProFound can create models that trace the complicated nature of these extended galaxies, which we show is not necessarily the case with other source extraction software. Our work suggests that our knowledge of the emission from extended radio objects may be both over or under-estimated using traditional software. We suggest that ProFound offers a useful alternative to the fitting of Gaussian components for generating catalogues from current and future radio surveys. Furthermore, ProFound’s multiwavelength capabilities will be useful in investigating radio sources in combination with multiwavelength data.
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Societyen
dc.rights© 2019, The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society. 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/stz1462en
dc.subjectMethods: data analysisen
dc.subjectRadio-continuum: galaxies, generalen
dc.subjectQB Astronomyen
dc.subjectQC Physicsen
dc.subjectNDASen
dc.subject.lccQBen
dc.subject.lccQCen
dc.titleRadio source extraction with ProFounden
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/stz1462
dc.description.statusPeer revieweden


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