J/MNRAS/462/2506ivo://CDS.VizieR/J/MNRAS/462/2506doi:10.26093/cds/vizier.74622506CDSBelardi C.Kilic M.Munn J.A.Gianninas A.Barber S.D.Dey A.,Stetson P.B.2024-08-16T20:18:22Z2018-03-23T12:40:24ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frsurveyswhite-dwarf-starsvisible-astronomysloan-photometrystellar-agesstellar-distanceWe present the first results from a minute cadence survey of a 3deg^2^ field obtained with the Dark Energy Camera. We imaged part of the Canada-France-Hawaii Telescope Legacy Survey area over eight half-nights. We use the stacked images to identify 111 high proper motion white dwarf candidates with g<=24.5mag and search for eclipse-like events and other sources of variability. We find a new g=20.64mag pulsating ZZ Ceti star with pulsation periods of 11-13min. However, we do not find any transiting planetary companions in the habitable zone of our target white dwarfs. Given the probability of eclipses of 1 per cent and our observing window from the ground, the non-detection of such companions in this first field is not surprising. Minute cadence DECam observations of additional fields will provide stringent constraints on the frequency of planets in the white dwarf habitable zone.2016MNRAS.462.2506Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/462/2506CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/462/2506https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/462/2506http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/462/2506https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/462/2506https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/462/2506http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/462/2506GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/462/2506/table13 (Astrometry, photometry (table 1) and physical parameters (table 3) of the good white dwarf candidates in the first field)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/462/2506/table13?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/462/2506/table13?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/462/2506/table13?GETtext/xml+votable180.050000true135.42818-3.683920.005555555555555556Cone search capability for table J/MNRAS/462/2506/table24 (Astrometry, photometry (table 2) and physical parameters (table 3) of the "maybe" white dwarf candidates in the first field)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/462/2506/table24?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/462/2506/table24?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/462/2506/table24?GETtext/xml+votable180.050000true135.94234-3.675133890.0055555555555555565/10230 6/40909 40911 40933 40944-409452.040811542443644e-19 6.090060298487514e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/462/2506?format=asciiOpticaldefaultJ/MNRAS/462/2506/table13Astrometry, photometry (table 1) and physical parameters (table 3) of the good white dwarf candidates in the first fieldrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameTarget name (WDNNN)meta.id;meta.maincharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainumagSDSS u magnitudemagphot.mag;em.opt.Ufloate_umagrms uncertainty in umagmagstat.error;phot.mag;em.opt.UfloatgmagSDSS g magnitudemagphot.mag;em.opt.Bfloate_gmagrms uncertainty in gmagmagstat.error;phot.mag;em.opt.BfloatrmagSDSS r magnitudemagphot.mag;em.opt.Rfloate_rmagrms uncertainty in rmagmagstat.error;phot.mag;em.opt.RfloatimagSDSS i magnitudemagphot.mag;em.opt.Ifloate_imagrms uncertainty in imagmagstat.error;phot.mag;em.opt.IfloatzmagSDSS z magnitudemagphot.mag;em.opt.Ifloate_zmagrms uncertainty in zmagmagstat.error;phot.mag;em.opt.IfloatpmRAProper motion along RAmas/yrpos.pm;pos.eq.rafloatpmDEProper motion along RAmas/yrpos.pm;pos.eq.decfloatTeffEffective temperatureKphys.temperature.effectiveinte_Teffrms uncertainty on TeffKstat.error;phys.temperature.effectiveintDistDistancepcpos.distance;pos.heliocentricintAgeAgeGyrtime.agefloatVtanTangential velocitykm/sphys.veloc.transverseintJ/MNRAS/462/2506/table24Astrometry, photometry (table 2) and physical parameters (table 3) of the "maybe" white dwarf candidates in the first fieldrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameTarget name (WDNNN)meta.id;meta.maincharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainumagSDSS u magnitudemagphot.mag;em.opt.Ufloate_umagrms uncertainty in umagmagstat.error;phot.mag;em.opt.UfloatgmagSDSS g magnitudemagphot.mag;em.opt.Bfloate_gmagrms uncertainty in gmagmagstat.error;phot.mag;em.opt.BfloatrmagSDSS r magnitudemagphot.mag;em.opt.Rfloate_rmagrms uncertainty in rmagmagstat.error;phot.mag;em.opt.RfloatimagSDSS i magnitudemagphot.mag;em.opt.Ifloate_imagrms uncertainty in imagmagstat.error;phot.mag;em.opt.IfloatzmagSDSS z magnitudemagphot.mag;em.opt.Ifloate_zmagrms uncertainty in zmagmagstat.error;phot.mag;em.opt.IfloatpmRAProper motion along RAmas/yrpos.pm;pos.eq.rafloatpmDEProper motion along RAmas/yrpos.pm;pos.eq.decfloatTeffEffective temperatureKphys.temperature.effectiveinte_Teffrms uncertainty on TeffKstat.error;phys.temperature.effectiveintDistDistancepcpos.distance;pos.heliocentricintAgeAgeGyrtime.agefloatVtanTangential velocitykm/sphys.veloc.transverseint