Spectroscopically Identified Hot Subdwarf Stars III/137 ivo://CDS.VizieR/III/137 CDS Kilkenny D. Heber U. Drilling J.S. 2016-08-24T09:58:47Z 2005-04-05T16:02:26Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr population-ii-stars subdwarf-stars The catalog contains data for 1225 spectroscopically classified hot subdwarf stars. It excludes central stars of planetary nebulae but includes stars in binary systems. The data assembled include, where available, alternative designations, accurate coordinates, UBV and uvby photometry, spectral types and determinations of effective temperature and surface gravity. Introduction: Prior to 1986 there were around 200 spectroscopically classified hot subdwarf stars. The Palomar-Green survey (Green et al., 1986ApJS...61..305G) detected over 900 hot subdwarfs, mostly in the North Galactic Cap and mostly previously unknown objects; the Kitt-Peak_Downes survey found another 60 near the Galactic Plane (Downes, 1986ApJS...61..569D). These form the basis of the present catalog but new subdwarfs are continually being found by spectroscopic surveys of photographically discovered faint blue star samples; examples are the work of Wegner and his co-workers on the Kiso survey (Wegner et al., 1985AJ.....90.1511W, 1986AJ.....91..139W, 1987AJ.....94.1271W) and of Kilkenny and Muller (1987) on southern discoveries by Luyten and collaborators (e.g. Haro and Luyten, 1962, Cat. III/74; Luyten and Anderson, 1958, 1959, 1967, "A Search for Faint Blue Stars"). Only stars for which a spectroscopic classification exists have been included. There is a significant probability that stars with only photometric classifications can be normal high-latitude B stars, white dwarfs or cataclysmic variable, for example. Hot subdwarfs in binary systems have been included but not planetary nebulae nuclei classified 'sd' since the latter have been catalogued elsewhere. Although there is not a universally accepted classification scheme for hot subdwarfs, it is fairly clear that the main criterion is a surface gravity higher than that of hot main sequence stars but less than that of hot white dwarfs. Also, hot subdwarf stars typically show helium abundance anomalies. 1988SAAOC..12....1K https://cdsarc.cds.unistra.fr/viz-bin/cat/III/137 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=III/137 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=III/137 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=III/137 https://vizier.cds.unistra.fr/viz-bin/votable?-source=III/137 https://vizier.iucaa.in/viz-bin/votable?-source=III/137 http://vizieridia.saao.ac.za/viz-bin/votable?-source=III/137 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table III/137/catalog (The catalogue of hot subdwarf stars, completed with accurate positions) https://vizier.cds.unistra.fr/viz-bin/conesearch/III/137/catalog? https://vizier.iucaa.in/viz-bin/conesearch/III/137/catalog? http://vizieridia.saao.ac.za/viz-bin/conesearch/III/137/catalog? 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Should Not be used for identification. meta.record int ref Reference code, as it appears in data.dat meta.note char BibCode 19-digit reference code pos.frame char text Text of reference meta.ref;pos.frame char
III/137/catalog The catalogue of hot subdwarf stars, completed with accurate positions q_RA50 [ab] Accuracy of right ascension (3) meta.code.qual;pos.eq.ra char recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int Nr [1/6] Number of records related to this ID meta.number int RAJ2000 Right Ascension J2000 pos.eq.ra;meta.main DEJ2000 Declination J2000 pos.eq.dec;meta.main SName Name understandable by Simbad meta.id;meta.main char Comment Comment added at CDS about the star meta.note char m Number of lines for this star meta.number char ID Star identification (1) meta.id char Bname Designation from position (2) meta.id char RA50 Right Ascension (1950) hours (3) pos.eq.ra DE50 Declination (1950) degrees (3) pos.eq.dec q_DE50 [abc] Accuracy of declination (3) meta.code.qual;pos.eq.dec char Name Alternative name for star (4) meta.id char r_Vmag Reference for the photometry meta.ref;pos.frame char Vmag [8/18]? V magnitude (5) mag phot.mag;em.opt.V float nullable u_Vmag [ :] Uncertainty flag on Vmag meta.code.error char ci1 ? (B-V) or (b-y) color index (5) mag phot.color;em.opt.B;em.opt.V float nullable u_ci1 [ :] Uncertainty flag on color1 meta.code.error char ci2 ? (U-B) or m1 color index (5) mag phot.color float nullable u_ci2 [ :] Uncertainty flag on color2 meta.code.error char ci3 ? c1 or blank color index (5) mag phot.color float nullable Sp MK Spectral type (6) src.spType char r_Sp A reference for the spectral type meta.ref char l_Teff [ >] Limit flag on Teff meta.code.error;phys.temperature.effective char Teff ? log of effective temperature (7) log(K) phys.temperature.effective float nullable u_Teff [ :] Uncertainty flag on Teff meta.code.error;phys.temperature.effective char l_log(g) [ >] Limit flag on log(g) meta.code.error char log(g) ? Log of surface gravity log(cm.s**-2) phys.gravity float nullable u_log(g) [ :] Uncertainty flag on log(g) meta.code.error char r_log(g) Reference for Teff and log(g) meta.ref;pos.frame char