J/PASP/108/313ivo://CDS.VizieR/J/PASP/108/313doi:10.26093/cds/vizier.61080313CDSHall J.C.2025-09-09T14:12:05Z1997-12-09T21:47:00ZCDS support team

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

cds-question@unistra.frspectrophotometrySeveral studies have appeared in the literature describing methods for deriving stellar continuum fluxes as simple functions of Johnson color indices. In previous papers, we have used similar relations to derive Ca II H & K line core fluxes for dwarf stars on Lowell Observatory's Solar-Stellar Spectrograph (SSS) program. Our desire is to present our data, and complementary data from the Mt. Wilson and National Solar Observatory stellar and solar programs, in terms of physical fluxes. However, our existing relations break down for mid-K and later stars and for giant stars, which form an important element of our target list. In this work I have used a broader range of spectrophotometry and angular diameters than in our previous work to derive empirical flux scales for spectral types A to early M, luminosity classes I to V, and for four color indices, Johnson B-V, V-R, R-I, and Stromgren b-y. In this paper I describe the methods I used and present the derived flux scales. I compare the results with those from earlier studies and present examples of the use of the flux scales. The data and results are available on the World Wide Web home page. Access <http://www.lowell.edu>, select "Lowell staff", and select the author's home page.1996PASP..108..313Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/PASP/108/313CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/PASP/108/313https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/PASP/108/313http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/PASP/108/313https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/PASP/108/313https://vizier.iucaa.in/viz-bin/votable?-source=J/PASP/108/313http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/PASP/108/313GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/PASP/108/313/table4Empirical flux scalesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBandpass*Bandpassinstr.bandpasscharCIColor indexphot.colorcharC0*Zeroth-order coefficient of flux scalephot.flux;arith.zpfloatC1*First-order coefficient of flux scalestat.fit.paramfloatsigmadError in dex of flux scale relationstat.errorfloatsigmapError in percent of flux scale relation%stat.errorintCRb*Blue end of CI rangemagphot.colorfloatCRr*Red end of CI rangemagphot.colorfloatLCLuminosity classessrc.class.luminositycharJ/PASP/108/313/table5Table of referencesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHDHenry Draper Catalogue numbermeta.id;meta.mainintNameStar namemeta.idcharrSp*Spectrophotometric referencesmeta.refcharrD*Reference for star's angular diametermeta.refcharrBl*Reference for blanketing coefficientsmeta.refcharrb-y*Reference for Stromgren b-y indexmeta.refcharJ/PASP/108/313/table6Stellar propertiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHDStar's Henry Draper Catalogue numbermeta.id;meta.mainintSpSpectral type and luminosity classsrc.spTypecharD[]? Star's angular diametermasphys.angSize;srcfloate_D[]? Error in Dmasstat.errorfloatVmagV magnitudemagphot.mag;em.opt.VfloatB-VJohnson B-V colormagphot.color;em.opt.B;em.opt.VfloatV-R[]? Johnson V-R colormagphot.color;em.opt.V;em.opt.RfloatR-I[]? Johnson R-I colormagphot.color;em.opt.R;em.opt.Ifloatb-y[]? Stromgren b-y colormagphot.color;em.opt.B;em.opt.VfloatJ/PASP/108/313/blanketLine blanketing coefficientsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLambda*Central wavelength of bandpassnmem.wlfloatC0Zeroth-order polynomial coefficientstat.fit.paramfloatC1First-order polynomial coefficientstat.fit.paramfloatC2Second-order polynomial coefficientstat.fit.paramfloatC3Third-order polynomial coefficientstat.fit.paramdoubleC4Fourth-order polynomial coefficientstat.fit.paramdoublesigmaStd. dev. of data points about the fitstat.stdevfloatCRbBluest color index for the fitmagphot.colorfloatCRrReddest color index for the fitmagphot.colorfloatLC0Luminosity class for C0 (no = blank)src.class.luminositycharLC1Luminosity class for C1 (no = blank)src.class.luminositycharLC2Luminosity class for C2 (no = blank)src.class.luminositycharLC3Luminosity class for C3 (no = blank)src.class.luminositycharLC4Luminosity class for C4 (no = blank)src.class.luminositycharCIColor index for coefficientphot.colorchar