J/AJ/146/162ivo://CDS.VizieR/J/AJ/146/162doi:10.26093/cds/vizier.51460162CDSShara M.M.Bibby J.L.Zurek D.Crowther P.A.Moffat A.F.J.Drissen L.2014-08-21T15:07:09Z2014-08-01T12:59:43ZCDS support team

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

cds-question@unistra.frgalaxieshst-photometrysupergiant-starswolf-rayet-starsAssembling a catalog of at least 10000 Wolf-Rayet (W-R) stars is an essential step in proving (or disproving) that these stars are the progenitors of Type Ib and Type Ic supernovae. To this end, we have used the Hubble Space Telescope (HST) to carry out a deep, HeII optical narrowband imaging survey of the ScI spiral galaxy M101. Almost the entire galaxy was imaged with the unprecedented depth and resolution that only the HST affords. Differenced with archival broadband images, the narrowband images allow us to detect much of the W-R star population of M101. We describe the extent of the survey and our images, as well as our data reduction procedures. A detailed broadband-narrowband imaging study of a field east of the center of M101, containing the giant star-forming region NGC5462, demonstrates our completeness limits, how we find W-R candidates, their properties and spatial distribution, and how we rule out most contaminants. We use the broadband images to locate luminous red supergiant (RSG) candidates. The spatial distributions of the W-R and RSG stars near NGC 5462 are strikingly different. W-R stars dominate the complex core, while RSGs dominate the complex halo. Future papers in this series will describe and catalog more than a thousand W-R and RSG candidates that are detectable in our images, as well as spectra of many of those candidates.2013AJ....146..162Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/146/162CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/hst : HST Archived Exposures Catalog (STScI, 2007)J/AJ/146/114 : Massive stars in M101. I. HST BVI photometry (Grammer+, 2013)J/ApJ/733/124 : Cepheids in M101 observed with HST (Shappee+, 2011)J/ApJ/508/491 : M101 Cepheids (Stetson+, 1998)J/ApJ/463/26 : VI photometry of 29 Cepheids in M101. (Kelson+ 1996)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/146/162https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/146/162http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/146/162https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/146/162https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/146/162http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/146/162GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/146/162/table1 (Photometry of M101 Wolf-Rayet candidates)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/146/162/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/146/162/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/146/162/table1?GETtext/xml+votable180.050000true210.9658416754.360986110.005555555555555556Cone search capability for table J/AJ/146/162/table2 (HST/ACS photometry of Red SuperGiant (RSG) candidates in one pointing of M101)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/146/162/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/146/162/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/146/162/table2?GETtext/xml+votable180.050000true210.9738791754.364902780.0055555555555555566/114342.3657755224268815e-19 4.75565502943315e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/146/162?format=asciiOpticaldefaultJ/AJ/146/162/table1Photometry of M101 Wolf-Rayet candidatesB-469? The HST/ACS F435W-F469N color indexmagphot.color;em.opt.B;em.opt.Vfloatnullablee_B-469? The 1{sigma} uncertainty in B-469magstat.errorfloatnullableF555W? The HST/ACS F555W band VEGA magnitudemagphot.mag;em.opt.Vfloatnullablee_F555W? The 1{sigma} uncertainty in F555Wmagstat.errorfloatnullableF814W? The HST/ACS F814W band VEGA magnitudemagphot.mag;em.opt.Ifloatnullablee_F814W? The 1{sigma} uncertainty in F814Wmagstat.errorfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Hour of Right Ascension (J2000) (1)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000) (1)pos.eq.dec;meta.mainF469NThe HST/WFC3 F469N band magnitudemagphot.mag;em.opt.Bfloate_F469NUncertainty in F469Nmagstat.errorfloatF435W? The HST/ACS F435W band VEGA magnitudemagphot.mag;em.opt.Bfloatnullablee_F435W? The 1{sigma} uncertainty in F435Wmagstat.errorfloatnullableJ/AJ/146/162/table2HST/ACS photometry of Red SuperGiant (RSG) candidates in one pointing of M101recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainF435WThe HST/ACS F435W band VEGA magnitudemagphot.mag;em.opt.Bfloate_F435WThe 1{sigma} uncertainty in F435Wmagstat.errorfloatF555WThe HST/ACS F555W band VEGA magnitudemagphot.mag;em.opt.Vfloate_F555WThe 1{sigma} uncertainty in F555Wmagstat.errorfloatF814WThe HST/ACS F814W band VEGA magnitudemagphot.mag;em.opt.Ifloate_F814WThe 1{sigma} uncertainty in F814Wmagstat.errorfloat