J/A+AS/128/331ivo://CDS.VizieR/J/A+AS/128/331CDSDanner R.1998-03-27T01:28:31Z1998-03-27T02:28:22ZCDS support team

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

cds-question@unistra.frx-ray-sourcesFigure 9: Finding charts for the objects where spectra were taken, based on the APM data base. The cross is centered at the X-ray position. 30 arcsec radius error circles are shown and arrows mark the objects with the available spectra. North is up and East to the left in all charts. Figure 10: Deep CCD images of the X-ray source fields with faint optical counterparts. Circles with 30 arcsec radius are centered on the X-ray position. Capital letters identify the brightest object next to them (see Table 3 for remarks on identification). The filter used and the exposure time are shown above each image in brackets.1998A&AS..128..331Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+AS/128/331CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/316/147 : Catalogue of ROSAT White Dwarfs (Fleming+ 1996)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+AS/128/331https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+AS/128/331http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+AS/128/331https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+AS/128/331https://vizier.iucaa.in/viz-bin/votable?-source=J/A+AS/128/331http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+AS/128/331GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+AS/128/331/table2 (Summary of the identification program of all 89 sources found within the lowest contours of the MBM cloud maps)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+AS/128/331/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+AS/128/331/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+AS/128/331/table2?GETtext/xml+votable180.050000true2.62208320.7938890.005555555555555556ROSAThttps://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+AS/128/331?format=asciiX-raydefaultJ/A+AS/128/331/table2Summary of the identification program of all 89 sources found within the lowest contours of the MBM cloud mapsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDInternal reference numbermeta.refintRA2000X-ray right ascension (2000.0)pos.eq.ra;meta.mainDE2000Declination signpos.eq.dec;meta.mainRateSource count ratect/sphot.count;em.X-rayfloate_RateError in count ratect/sstat.errorfloatHR1? Hardness ratio HR1 (1)phot.flux;arith.ratiofloatnullableHR2? Hardness ratio HR2 (1)phot.flux;arith.ratiofloatnullableNameCatalog name of objectmeta.idcharn_Name[*+ab] Note on Name (2)meta.notecharSpTypeSpectral Typesrc.spTypecharBandP[OVJ] Band of the magnitude mvismeta.notecharmvis? Visual magnitude of counterpartmagphot.mag;em.opt.Vfloatnullablel_O-ELimit flag on O-Emeta.code.errorcharO-E? O-E color index from APM scansmagphot.color;em.opt.B;em.opt.RfloatnullableDist? Separation between X-ray source and proposed counterpartarcsecpos.angDistancefloatnullableBandBands in which the source has been observed at the VLAinstr.bandpasscharl_log(FX/Fopt)Limit flag on log(FX/Fopt)meta.code.errorcharlog(FX/Fopt)? Logarithm of X-ray to optical flux ratiophot.flux;arith.ratiofloatnullable