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dc.contributor.authorVerbeek, Kars
dc.contributor.authorGroot, Paul J.
dc.contributor.authorNelemans, Gijs A.
dc.contributor.authorScaringi, Simone
dc.contributor.authorNapiwotzki, R.
dc.contributor.authorDrew, J.E.
dc.contributor.authorSteeghs, D.T.H.
dc.contributor.authorCasares, Jorge
dc.contributor.authorCorral-Santana, J.M.
dc.contributor.authorGänsicke, Boris T.
dc.contributor.authorGonzález-Solares, E.A.
dc.contributor.authorGreimel, Robert
dc.contributor.authorHeber, Ulrich
dc.contributor.authorIrwin, Mike J.
dc.contributor.authorKnigge, Christian
dc.contributor.authorWright, N.J.
dc.contributor.authorZijlstra, Albert
dc.date.accessioned2014-06-02T08:30:27Z
dc.date.available2014-06-02T08:30:27Z
dc.date.issued2013-10-01
dc.identifier.citationVerbeek , K , Groot , P J , Nelemans , G A , Scaringi , S , Napiwotzki , R , Drew , J E , Steeghs , D T H , Casares , J , Corral-Santana , J M , Gänsicke , B T , González-Solares , E A , Greimel , R , Heber , U , Irwin , M J , Knigge , C , Wright , N J & Zijlstra , A 2013 , ' A determination of the space density and birth rate of hydrogen-line (DA) white dwarfs in the Galactic plane, based on the UVEX survey ' , Monthly Notices of the Royal Astronomical Society , vol. 434 , no. 4 , pp. 2727-2741 . https://doi.org/10.1093/mnras/stt1005
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 7099589
dc.identifier.otherPURE UUID: 5124cf8d-cb0e-4728-81ad-e6c80a808562
dc.identifier.otherScopus: 84885126131
dc.identifier.urihttp://hdl.handle.net/2299/13587
dc.description.abstractWe present a determination of the average space density and birth rate of hydrogen-line (DA) white dwarfs within a radius of 1 kpc around the Sun, based on an observational sample of 360 candidate white dwarfs with g <19.5 and (g - r) <0.4, selected from the UV-Excess (UVEX) survey of the northern Galactic plane, in combination with a theoretical white dwarf population that has been constructed to simulate the observations, including the effects of reddening and observational selection effects. The main uncertainty in the derivation of the white dwarf space density and current birth rate lies in the absolute photometric calibration and the photometric scatter of the observational data, which influences the classification method on colours, the completeness and the pollution. Corrections for these effects are applied. We derive an average space density of DA white dwarfs with Teff > 10 000K (MV <12.2) of (3.8 ± 1.1) × 10-4 pc-3, and an average DA white dwarf birth rate over the last 7×107 yr of (5.4 ± 1.5) × 10-13 pc-3 yr-1. Additionally, we show that many estimates of the white dwarf space density from different studies are consistent with each other, and with our determination here.en
dc.format.extent15
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.subjectGalaxy: disc
dc.subjectGalaxy: stellar content
dc.subjectISM: general
dc.subjectStars: general
dc.subjectSurveys
dc.subjectWhite dwarfs
dc.titleA determination of the space density and birth rate of hydrogen-line (DA) white dwarfs in the Galactic plane, based on the UVEX surveyen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionScience & Technology Research Institute
dc.contributor.institutionCentre for Astrophysics Research
dc.description.statusPeer reviewed
rioxxterms.versionAM
rioxxterms.versionofrecordhttps://doi.org/10.1093/mnras/stt1005
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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