J/AJ/157/22ivo://CDS.VizieR/J/AJ/157/22doi:10.26093/cds/vizier.51570022CDSHumphreys R.M.Stangl S.Gordon M.S.Davidson K.Grammer S.H.2021-01-07T12:03:28Z2019-05-31T07:35:01ZCDS support team

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

cds-question@unistra.frgalaxiesvariable-starssupergiant-starsstellar-spectral-typesinfrared-photometryvisible-astronomybroad-band-photometryhst-photometryinterstellar-reddeningextinctionWe present the results of spectroscopy and multi-wavelength photometry of luminous and variable star candidates in the nearby spiral galaxies NGC 2403 and M81. We discuss specific classes of stars, the Luminous Blue Variables (LBVs), B[e] supergiants (sgB[e]), and the high-luminosity yellow hypergiants. We identify two new LBV candidates, and three sgB[e] stars in M81. We also find that some stars that were previously considered LBV candidates are actually field stars. The confirmed and candidate LBVs and sgB[e] stars together with the other confirmed members are shown on the HR Diagrams for their respective galaxies. We also present the HR Diagrams for the two "SN impostors", V37 (SN2002kg) and V12 (SN1954J) in NGC 2403 and the stars in their immediate environments.2019AJ....157...22Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/157/22CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/438/181 : Observations of H II Regions in M81 (Hill+ 1995)J/AJ/122/1330 : HST BVI photometry of M 81 star clusters (Chandar+, 2001)J/AJ/126/1286 : H{alpha}+[NII] observations of M81 HII regions (Lin+, 2003)J/ApJ/648/987 : UV through far-IR analysis of M81 (Perez-Gonzalez+, 2006)J/A+A/521/A3 : Abundances in HII regions and PNe of M81J/AJ/139/1413 : M81 star cluster candidates (Nantais+, 2010)J/MNRAS/405/1293 : Compact star clusters in M81 (Santiago-Cortes+, 2010)J/ApJ/743/176 : BVI photometry of Cepheids in M81 (Gerke+, 2011)J/A+A/567/A88 : Abundances in HII regions of M81 (Stanghellini+, 2014)J/ApJ/853/151 : Oxygen abundances for giant HII regions in NGC 2403https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/157/22https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/157/22http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/157/22https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/157/22https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/157/22http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/157/22GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/157/22/members (Members of NGC 2403 (table 2) and M81 (table 3))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/157/22/members?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/157/22/members?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/157/22/members?GETtext/xml+votable180.050000true113.9072916765.592713890.005555555555555556Cone search capability for table J/AJ/157/22/table7 (Foreground stars and others)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/157/22/table7?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/157/22/table7?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/157/22/table7?GETtext/xml+votable180.050000true113.8057565.6172250.0055555555555555566/7606 7741 77432.0616683193919197e-20 4.75565502943315e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/157/22?format=asciiOpticalInfrareddefaultJ/AJ/157/22/membersMembers of NGC 2403 (table 2) and M81 (table 3)SimbadNameSimbad column added by the CDSmeta.idcharStarStellar identifiermeta.id;meta.maincharprimaryrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGalGalaxy host (NGC 2403 or M81)src.class.starGalaxycharmoreindicates data in Tables 5-6 for this starmeta.ref.urlcharFieldField designation (not in Table 3) (1)meta.idcharONameOther stellar identifier(s)meta.idcharRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainSpTypeSpectral typesrc.spTypecharn_SpType[b] Note on SpType (only in Table 3) (2)meta.notecharVmag[17.49/20.69]? Visual magnitudemagphot.mag;em.opt.VfloatnullableSourcePrimary source(s) for target (3)meta.codecharVarVariability?meta.code;src.varcharComComment on the spectrum and observationmeta.note;obs.param;obsBibcodeBibcode of reference in Com (not in Table 3)meta.bib.bibcodecharJ/AJ/157/22/table5Multi-wavelength photometryrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGalGalaxy host (NGC 2403 or M81)src.class.starGalaxycharStarStellar identifiermeta.id;meta.maincharONameOther stellar identifier(s)meta.idcharf_Star[c] Flag on Star (1)meta.codecharUmag[16.6/22.15]? U band magnitude (2)magphot.mag;em.opt.Ufloatnullableu_Umag[:] Uncertainty flag on Umagmeta.code.errorcharBmag[18.01/21.62]? B band magnitude (2)magphot.mag;em.opt.BfloatnullableVmag[17.49/20.35]? V band magnitude (2)magphot.mag;em.opt.VfloatnullableRmag[18/20.23]? R band magnitude (2)magphot.mag;em.opt.RfloatnullableF435mag[19.49/21.19]? HST/ACS F435W filter magnitude (3)magphot.mag;em.opt.BfloatnullableF475mag[19.23/20.52]? HST/ACS F475W filter magnitude (3)magphot.mag;em.opt.VfloatnullableF606mag[18.87/20.08]? HST/ACS F606W filter magnitude (3)magphot.mag;em.opt.Rfloatnullable1.1mag[17.25/21.1]? HST/WFC3 1.1 um filter magnitudemagphot.mag;em.IR.Jfloatnullable1.6mag[16.78/19.24]? HST/WFC3 1.6 um filter magnitudemagphot.mag;em.IR.JfloatnullableF3.6[3/614]? Spitzer/IRAC 3.6 micron band flux densityuJyphot.mag;em.IR.3-4umintnullableF4.5[1.6/411]? Spitzer/IRAC 4.5 micron band flux densityuJyphot.mag;em.IR.4-8umfloatnullableF5.8[15/1205]? Spitzer/IRAC 5.8 micron band flux densityuJyphot.flux.density;em.IR.4-8umintnullablef_F5.8[f :] Flag on F5.8 (4)meta.codecharF8.0[129/282]? Spitzer/IRAC 8.0 micron band flux densityuJyphot.flux.density;em.IR.8-15umintnullablef_F8.0[f:] Flag on F8.0 (4)meta.codecharComAdditional commentsmeta.notecharBibcodeBibcode of reference in Commeta.bib.bibcodecharJ/AJ/157/22/table6Interstellar extinction and luminositiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGalGalaxy host (NGC 2403 or M81)src.class.starGalaxycharStarStellar identifiermeta.id;meta.maincharONameOther stellar identifier(s)meta.idcharn_Star[c] Note on Star (1)meta.notecharSpTypeSpectral typesrc.spTypecharB-V1[-0.21/1.36]? LBC B-V color indexmagphot.color;em.opt.B;em.opt.Vfloatnullableu_B-V1[:] Uncertainty flag on B-V1meta.code.error;phot.color;em.opt.BcharB-V2[0.08/1.58]? HST B-V color indexmagphot.color;em.opt.B;em.opt.Vfloatnullableu_B-V2[:] Uncertainty flag on B-V2meta.code.error;phot.color;em.opt.Bcharb_E(B-V)[0/1]? Reddening, lower valuemagphot.color.excess;stat.minfloatnullableu_b_E(B-V)[:?] Uncertainty flag on b_E(B-V)meta.code.errorcharB_E(B-V)[0.29/0.8]? Reddening, upper valuemagphot.color.excess;stat.maxfloatnullableb_Av[0.16/3.2]? Visual extinction, lower valuemagphys.absorption;stat.minfloatnullableu_b_Av[)] Uncertainty flag on b_Avmeta.code.errorcharB_Av[0.9/1.06]? Visual extinction, upper valuemagphys.absorption;stat.maxfloatnullableVMag[-11.7/-7.7]? Absolute visual magnitudemagphys.magAbsfloatnullableu_VMag[:] Uncertainty flag on VMagmeta.code.errorcharn_VMag[b] Note on VMag (2)meta.notecharMbol[-11.6/-7.8]? Bolometric magnitudemagphys.magAbs.bolfloatnullableu_Mbol[:] Uncertainty flag on Mbolmeta.code.errorcharTemp[5500/21700]? TemperatureKphys.temperatureintnullableu_Temp[:] Uncertainty flag on Tempmeta.code.errorcharf_Temp[*] Flag on Temp (3)meta.codecharJ/AJ/157/22/table7Foreground stars and othersVarVariability?meta.code;src.varcharSourcePrimary source(s) for target (3)meta.codecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGalGalaxy host (NGC 2403 or M81)src.class.starGalaxycharStarStellar identifiermeta.id;meta.maincharFieldField designation (not in Table 3) (1)meta.idcharONameOther stellar identifier(s)meta.idcharRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainSpTypeSpectral typesrc.spTypecharn_SpType[b] Note on SpType (only in Table 3) (2)meta.notecharVmag[17.49/20.69]? Visual magnitudemagphot.mag;em.opt.VfloatnullableComComment on the spectrum and observationmeta.note;obs.param;obscharBibcodeBibcode of reference in Com (not in Table 3)meta.bib.bibcodechar