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dc.contributor.authorSilvotti, R.
dc.contributor.authorCatalan, Silvia
dc.contributor.authorCignoni, M.
dc.contributor.authorAlcala, J. M.
dc.contributor.authorCapaccioli, M.
dc.contributor.authorGrado, A.
dc.contributor.authorPannella, M.
dc.date.accessioned2011-12-20T11:01:08Z
dc.date.available2011-12-20T11:01:08Z
dc.date.issued2009-04
dc.identifier.citationSilvotti , R , Catalan , S , Cignoni , M , Alcala , J M , Capaccioli , M , Grado , A & Pannella , M 2009 , ' White dwarfs in the Capodimonte deep field ' , Astronomy and Astrophysics , vol. 497 , no. 1 , pp. 109-116 . https://doi.org/10.1051/0004-6361:20079137
dc.identifier.issn0004-6361
dc.identifier.otherPURE: 494527
dc.identifier.otherPURE UUID: 745f0146-2097-465c-91ca-1644d22011fd
dc.identifier.otherWOS: 000264892600014
dc.identifier.otherScopus: 63849342284
dc.identifier.urihttp://hdl.handle.net/2299/7396
dc.description.abstractAims. In this article we describe the search for white dwarfs (WDs) in the multi-band photometric data of the Capodimonte deep field survey. Methods. The WD candidates were selected through the V - R-C vs. B-V color-color diagram. For two bright objects, the WD nature has been confirmed spectroscopically, and the atmospheric parameters (T-eff and log g) have been determined. We have computed synthetic stellar population models for the observed field and the expected number of white dwarfs agrees with the observations. The possible contamination by turn-off and horizontal branch halo stars has been estimated. The quasar (QSO) contamination has been determined by comparing the number of WD candidates in different color bins with state-of-the-art models and previous observations. Results. The WD space density is measured at different distances from the Sun. The total contamination (non-degenerate stars + QSOs) in our sample is estimated to be around 30%. This work should be considered a small experiment in view of more ambitious projects to be performed in the coming years in larger survey contexts.en
dc.format.extent8
dc.language.isoeng
dc.relation.ispartofAstronomy and Astrophysics
dc.subjectsurveys
dc.subjectGalaxy: stellar content
dc.subjectstars: white dwarfs
dc.subjectstars: atmospheres
dc.subjectDIGITAL-SKY-SURVEY
dc.subjectLUMINOSITY FUNCTION
dc.subjectSTAR COUNTS
dc.subjectSOLAR NEIGHBORHOOD
dc.subjectPHOTOMETRIC SURVEY
dc.subjectGLOBULAR-CLUSTERS
dc.subjectMASS FUNCTIONS
dc.subjectHYDROGEN-RICH
dc.subjectMAIN-SEQUENCE
dc.subjectMILKY-WAY
dc.titleWhite dwarfs in the Capodimonte deep fielden
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.versionSMUR
rioxxterms.versionofrecordhttps://doi.org/10.1051/0004-6361:20079137
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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