J/A+A/382/92ivo://CDS.VizieR/J/A+A/382/92doi:10.26093/cds/vizier.33820092CDSShatsky N.Tokovinin A.2018-01-10T11:47:09Z2002-02-04T05:37:55ZCDS support team

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

cds-question@unistra.frob-starsmultiple-starsinfrared-photometryTo investigate the dependence of (visual) binarity characteristics on the primary component mass, we selected all stars of spectral type B in Sco OB2 association and searched for near-infrared companions to them with ADONIS and Coronograph. The data acquisition and companions measurement results are described; the mass ratio distribution f(q)=q**(-0.5) is derived using the PMS stars evolution tracks. Target stars J- and K-magnitudes are presented in Table 1; differential photometry and astrometry results for secondary companions and background sources in sky-offset fields are given in Table 2 and 3, respectively.2002A&A...382...92Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/382/92CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/382/92https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/382/92http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/382/92https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/382/92https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/382/92http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/382/92GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/382/92/table1 (Target star photometry)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/382/92/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/382/92/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/382/92/table1?GETtext/xml+votable180.050000true164.808379-61.3207390.0055555555555555566/29208 30722 37186 37888 37894 37900 37905 37928 37969 37990 38212 41516 41606-41607 41632 41634 41705 41709 41866 41917 41963 41973 41983 42218 42237 42406-42407 42414 42424-42425 42428 42617 42623 42633 42640 42656 42658 42672 42674 42687 42728 42736 42738 42763 42800 42883 42924 42932 42948 42977 42984 42987 42994 43011 43014 43018 43038 43062 43067 43072 43099 43115 43117 43137 43140 43183 43210-43211 43238 43272 43294 43308 43336 43345 43365 43383 43397 43407 43414 43416 43429 43460 43521 43531 43538 43843 43852 44043 44086 44119 44305-44307 44310 44312-44313 44316 44352 44359-44360 44366 44378 44385-44386 44389 44393 44502https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/382/92?format=asciiInfrareddefaultJ/A+A/382/92/table1Target star photometryrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHDHD number of target starmeta.id;meta.mainintprimarySimbadSimbad column added by the CDSmeta.refcharSpTypeMK spectral classification (from Simbad)src.spTypecharVmagV magnitude (from Simbad)magphot.mag;em.opt.VfloatAvInterstellar extinction in the visible (1)magphys.absorptionfloatKmagK-band (2.2um) magnitude (2)magphot.mag;em.IR.Kfloate_Kmag? Error of Kmag (3)magstat.errorfloatnullableJ-K? (J-K) color index (absent for HD 143275)magphot.color;em.IR.J;em.IR.Kfloatnullablee_J-K? Error of (J-K) (4)magstat.errorfloatnullableNobsNumber of observations (pointings)meta.numberintNphysNumber of physical companions aroundmeta.numberintNoptNumber of optical companions aroundmeta.numberintNskyNumber of stars in sky-offset fieldobs.fieldintFlag[ANTcjs+] flags (5)meta.codechar_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/A+A/382/92/table2Secondaries photometry and positionsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHDHD number of target starmeta.id;meta.mainintIDComponent identifier (1)meta.code.multipcharKmagK-band magnitude as K(primary) + delta(K)magphot.mag;em.IR.Kfloate_Kmag? Error: deviation of delta(K) from meanmagstat.errorfloatnullableJ-K? (J-K) color as (J-K)(primary) + delta(J-K)magphot.color;em.IR.J;em.IR.Kfloatnullablee_J-K? Error: deviation of delta(J-K) from meanmagstat.errorfloatnullableFlag[c+!?: ] flags (2)meta.codecharRhoSeparation from primaryarcsecpos.angDistancefloate_RhoError of Rho (in milliarcseconds)masstat.errorfloatPAposition angledegpos.posAngfloate_PAError of PAdegstat.errorfloatNobsNumber of observations (pointings)meta.numberintStatus[PO? ] `P'-physical,`O'-optical (`?'-uncertain)src.class.structcharJ/A+A/382/92/table3Background sources dataFlag[c+] flag (1)meta.codecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHDHD number of target starmeta.id;meta.mainintID[abcdefghi] background star identifiermeta.code.multipcharJmag? J-band (1.2mu) magnitudemagphot.mag;em.IR.Jfloatnullablee_Jmag? error: spread of different observationsmagstat.errorfloatnullableKmagK-band (2.2mu) magnitudemagphot.mag;em.IR.Kfloate_Kmag? error: spread of different observationsmagstat.errorfloatnullabledelRACoordinate difference with target in right ascension directionarcsecpos.eq.ra;arith.difffloatdelDECoordinate difference with target in declination directionarcsecpos.eq.dec;arith.difffloat