J/AN/324/219ivo://CDS.VizieR/J/AN/324/219doi:10.26093/cds/vizier.113240219CDSWegner W.2025-09-29T20:17:23Z2006-08-11T14:12:00ZCDS support team

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

cds-question@unistra.frearly-type-starsphotometryextinctionThe paper presents an extensive list of the total to selective extinction ratios R calculated from the infrared magnitudes of 597 O and B stars using the extrapolation method. The IR magnitudes of these stars were taken from the literature. The IR colour excesses are determined with the aid of "artificial standards", Wegner (1994MNRAS.270..229W). The individual and mean values of total to selective extinction ratios R differ in most cases from the average value R=3.10+/-0.05, Wegner (1993AcA....43..209W) in different OB associations. The relation between total to selective extinction ratios R determined in this paper and those calculated using the "method of variable extinction" and the Cardelli et al. (1989ApJ...345..245C) formulae is discussed. The R values presented in this paper can be used to determine individual absolute magnitudes of reddened OB stars with known trigonometric parallaxes.2003AN....324..219Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AN/324/219CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/62 : Catalogue of Extinction Data (Neckel+, 1980)J/BaltA/11/1 : Interstellar extinction curves of OB stars (Wegner 2002)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AN/324/219https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AN/324/219http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AN/324/219https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AN/324/219https://vizier.iucaa.in/viz-bin/votable?-source=J/AN/324/219http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AN/324/219GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AN/324/219/table1 (Total-to-selective extinction ratios R and absolute magnitudes M_V_ with their errors)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AN/324/219/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AN/324/219/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AN/324/219/table1?GETtext/xml+votable180.050000true5.023093362.06630610.0055555555555555565/3869 6/375 405 463 474 496 859 862 903 1011 1198-1199 1210 1293 1297 1332 1428 1441 1539-1540 1542 1550 1558 1583 1770 1790 2775 2849 2940 2990 3050-3051 3054 3058 3060 3066 3136 3244 3251 3254 3256-3258 3260-3261 3272 3274 3283-3284 3296-3297 3300-3301 3307-3308 3312 3430 3464 3589 3600 3608 3622 3626 3641 3721 3816 4110 6780 12943 12972 12981 13226 13310 13557 13701 13703 13963 13991 14008 14015 14146 14197 14207 14209 14217 14255 14279 14286 14295 14311-14312 14353 14356 14359-14360 14431 14457 14605 14621-14622 14630-14632 14636 14643-14644 14646-14647 14649 14653 14655 14690-14692 14712 14798 14824 15368-15369 15392 15396 15399 15481 15484-15486 15553 15624 15631 15672 15682-15683 15685-15686 15745 15747 19402 20820 20955 21343 21438-21439 21465 21482-21483 21506 21529-21530 21538 21635 21638 21644 21646-21647 21655-21656 21671 22033 22040 22112 22122-22123 22211 22216 22218 22223 22240 22243 22246 22249 22252-22253 22258 22805 22837 22845 22848 22854-22855 22857 22859 22861-22863 22872-22873 22884 22888 22992 23255 23483 23632 23637 23641 23644 23670 23714 23717 23851 23932 23979 23982 23993 23995 23998 24180 24191 24292 24325 24338 24340 24368 24370 24379 24424 24467 24489 24497 24521 24552 26672 28687 28704 28730 28737 28809 28833 28837 28852-28853 28890-28892 28894 28900 28913 28915 28919 29014 29025 29036 29042 29084 29089 29091 29094-29095 29107 29116 29134 29154 29158 29162-29163 29179 29299 29460 29463 29467 29504 29507 29511-29513 29515 29522 29527 29530 29537 29600 29621 29876 29893 30088 30114 30216 30219 30256 30366 30440 30539 30718 30818 30925 31056 31121 31756 31787 31808 31904 33078 33097-33098 33100 33120 33123 37231 37245 37333 37593 37696 37754 37833 37851 37854 37863 37886 37896-37898 37900-37902 37922-37923 37926 37930 37932 37938 37948 38016 38026 38174 38655 39209 39238 39248-39249 39254 39264 39274 39281 39297 39327 39374 39386 39733 39776 39876 39907 39937 39971 41169 41510 41562 41598-41599 41630 41653 41658 41663 41675 41685-41686 41692 41698 41747 41750 41813 41867 41903 41924 42080 42116 42190 42203 42213-42215 42221 42228 42235-42236 42324 42368 42377 42383 42394-42395 42405 42407 42410 42416-42417 42421 42439 42456 42458 42464 42470 42477 42481 42483 42486 42516 42951 42959 42967 42977 42980-42982 42984 42989-42990 42994 43019 43030 43041-43042 43062 43086 43088 43119 43333 43561 44213 44307 44310 44348 44352 44360 44366 44378 44389 44892 45105 47244 47246 47648https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AN/324/219?format=asciiOpticaldefaultJ/AN/324/219/table1Total-to-selective extinction ratios R and absolute magnitudes M_V_ with their errorsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar name (1)meta.id;meta.maincharVmagV magnitudemagphot.mag;em.opt.VfloatSpTypeMK spectral typesrc.spTypecharr_SpTypeReferences for SpType, in refs.dat filemeta.bibcharE(B-V)Extinction in B-Vmagphot.color.excessfloatr_E(B-V)References for UBV data, in refs.dat filemeta.bibintRTotal-to-selective extinction ratio, R=A(V)/E(B-V)phys.absorptionfloate_Rrms uncertainty on Rstat.errorfloatVMAG? Absolute V magnitudemagphys.magAbs;em.opt.Vfloatnullablee_VMAG? rms uncertainty on Vmagmagstat.errorfloatnullableu_VMAGUncertainty flag on Vmag (no rms uncertainty)meta.code.errorcharRemRemarksmeta.notecharSimbadSimbad column added by the CDSchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/AN/324/219/refsReferences (table 4 in paper)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference numbermeta.id;meta.maincharBibCodeBibCodemeta.bib.bibcodecharAutAuthor's namemeta.bib.authorcharComCommentsmeta.notechar