J/AJ/165/45ivo://CDS.VizieR/J/AJ/165/45doi:10.26093/cds/vizier.51650045CDSMalofeeva A.A.Mikhnevich V.O.Carraro G.Seleznev A.F.2023-10-17T11:43:38Z2023-06-13T06:22:35ZCDS support team

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

cds-question@unistra.fropen-star-clustersmultiple-starsinfrared-photometryvisible-astronomyIn this study, we continue our project to search for unresolved binary and multiple systems in open clusters exploiting the photometric diagram (H-W2)-W1 versus W2-(BP-K) first introduced in Malofeeva+,. In particular, here we estimate the binary and multiple star ratios and the distribution of the component mass ratio q in the Galactic clusters AlphaPersei, Praesepe, and NGC1039. We have modified the procedure outlined in our first study making star counts automatic and by introducing bootstrapping for error estimation. Basing on this, we reinvestigated the Pleiades star cluster in the same mass range as in our previous work and corrected an inaccuracy in the mass ratio q distribution. The binary and multiple star ratio in the four clusters is then found to lie between 0.45{+/-}0.03 and 0.73{+/-}0.03. On the other hand, the ratio of systems with multiplicity more than 2 is between 0.06{+/-}0.01 and 0.09{+/-}0.02. The distribution of the component mass ratio q is well fitted with a Gaussian having the mode between 0.22{+/-}0.04 and 0.52{+/-}0.01 and the dispersion between 0.10{+/-}0.02 and 0.35{+/-}0.07. All clusters show a large number of the very low-mass secondary components in the binary systems with primary components below 0.5M{sun}.2023AJ....165...45Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/165/45CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)J/AJ/123/1570 : alpha Persei and Praesepe Clusters (Patience+, 2002)J/MNRAS/385/2210 : Spectroscopy around lam Ori and sig Ori (Maxted+, 2008)J/ApJS/190/1 : A survey of stellar families (Raghavan+, 2010)J/MNRAS/434/3236 : Masses of Praesepe members (Khalaj+, 2013)J/ApJ/794/143 : New SpeX Observations of M7-L6 Dwarfs (Bardalez+, 2014)J/A+A/563/A45 : Pleiades cluster membership probabilities (Sarro+, 2014)J/MNRAS/457/1028 : alpha Per cluster possible members (Sheikhi+, 2016)J/A+A/628/A66 : alpha Persei, Pleiades and Praesepe clusters (Lodieu+, 2019)J/A+A/640/A1 : Portrait Galactic disc (Cantat-Gaudin+, 2020)J/MNRAS/504/356 : Updated parameters of 1743 open clusters (Dias+, 2021)J/AJ/161/160 : BINOCS; NEWFIRM & IRAC IR photo clusters (Thompson+, 2021)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/165/45https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/165/45http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/165/45https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/165/45https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/165/45http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/165/45GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/165/45/fig3 (The (H-W2)-W1 vs W2-(BP-K) diagram for Pleaides probable members)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/165/45/fig3?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/165/45/fig3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/165/45/fig3?GETtext/xml+votable180.050000true45.4461819426.288321940.005555555555555556Cone search capability for table J/AJ/165/45/fig5 (The (H-W2)-W1 vs W2-(BP-K) diagram for the probable members of Alpha Persei)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/165/45/fig5?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/165/45/fig5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/165/45/fig5?GETtext/xml+votable180.050000true34.8130969452.493148890.005555555555555556Cone search capability for table J/AJ/165/45/fig6 (The (H-W2)-W1 vs W2-(BP-K) diagram for the probable members of Praesepe)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/165/45/fig6?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/165/45/fig6?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/165/45/fig6?GETtext/xml+votable180.050000true118.8500819418.735013890.005555555555555556Cone search capability for table J/AJ/165/45/fig9 (The diagram (H-W2)-W1 vs W2-(BP-K) for the probable members of NGC 1039)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/165/45/fig9?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/165/45/fig9?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/165/45/fig9?GETtext/xml+votable180.050000true37.6969869442.651311110.0055555555555555564/28 30 110 193 196 293-294 5/89-91 94 116-118 124 126-127 209 212 411-412 420 422 426 431 433 435-436 446 598-599 604 777 780-781 783 794 803 1083-1084 1086 1157 1168-1169 1171 1180-1181 1183 1200 1205 1218 1224 1226 1249 6/319 324 327 329 332-334 337-338 353 355 368-370 381-382 405 407 413-414 436-437 439 441 443-444 447 476 478-479 500 502-503 773 788 793 797 817 832 834-835 840 843 845 852 856 862 867-868 870 884-885 1020-1021 1065 1160-1162 1173 1181 1189 1191 1193-1194 1209-1211 1536 1539-1541 1548 1554 1556 1593 1595 1599 1635-1636 1638-1639 1642-1643 1655-1656 1658 1661-1663 1667-1670 1687 1692-1693 1702-1703 1709 1711-1712 1714 1716-1717 1719-1720 1722-1723 1728-1730 1737-1739 1749 1752-1753 1758-1759 1776-1778 1780 1783 1788 1791 1802 1827 1830 1920 1954 2383 2387 2390-2391 2405 2407 2420 2422-2423 2515 2519 2524 3072 3075 3077 3083 3087 3105-3106 3113 3118-3119 3128 3130-3131 3152 3155-3156 3158-3161 3166-3169 3172 3184 3187 3190 3192 3194 3196-3198 3201 3203-3204 3207-3208 3217-3222 3225-3226 3228 3233 3252 3265-3266 3268 3271 3274 3280-3282 3284 3286 3336 4243 4251 4253 4271 4275-4278 4282-4286 4290 4294-4295 4297-4299 4306-4307 4310-4311 4314-4315 4320-4321 4323 4325-4326 4328 4330-4331 4340 4342-4343 4349-4350 4482 4490 4492 4495 4513 4516 4518-4522 4526-4527 4530 4537-4538 4611 4613 4617 4621-4625 4627 4632-4633 4635-4637 4639-4640 4644-4645 4647 4652-4653 4657-4662 4664 4666 4671 4680-4681 4683 4728-4729 4731 4749 4752-4753 4756-4757 4761 4766-4767 4789 4804-4805 4807-4808 4810 4813-4814 4816 4818-4819 4826 4829 4831-4832 4837 4839 4841 4848-4850 4852 4854-4855 4861 4864 4866-4867 4869 4876-4877 4879 4882-4883 4886-4888 4892 4900 4902-4903 4908-4910 4913 4915-4916 4918 4920-4921 4924 4927 4938 4994-4995 5000-5002 5004-5005 5007 5009-5012 5015-5016 5024 5026 5028https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/165/45?format=asciiOpticalInfrareddefaultJ/AJ/165/45/fig3The (H-W2)-W1 vs W2-(BP-K) diagram for Pleaides probable membersSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGaiaGaia DR2 identifiermeta.id;meta.maincharRAGaiaGaia DR2 Right Ascension (J2015.5)degpos.eq.raDEGaiaGaia DR2 Declination (J2015.5)degpos.eq.decRAJ2000Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainW2BPKsThe W2-(Gbp-Ks) color (1)magphot.color;em.opt;em.IRfloate_W2BPKs? Uncertainty in W2-(BP-Ks)magstat.errorfloatnullableHW2W1? The (H-W2)-W1 color (1)magphot.color;em.IR;em.IRfloatnullablee_HW2W1? Uncertainty in (H-W2)-W1magstat.errorfloatnullableJ/AJ/165/45/fig5The (H-W2)-W1 vs W2-(BP-K) diagram for the probable members of Alpha PerseiSimbadSimbad column added by the CDSmeta.ref.urlcharGaiaGaia DR2 identifiermeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAGaiaGaia DR2 Right Ascension (J2015.5)degpos.eq.raDEGaiaGaia DR2 Declination (J2015.5)degpos.eq.decRAJ2000Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainW2BPKsThe W2-(Gbp-Ks) color (1)magphot.color;em.opt;em.IRfloate_W2BPKs? Uncertainty in W2-(BP-Ks)magstat.errorfloatnullableHW2W1? The (H-W2)-W1 color (1)magphot.color;em.IR;em.IRfloatnullablee_HW2W1? Uncertainty in (H-W2)-W1magstat.errorfloatnullableJ/AJ/165/45/fig6The (H-W2)-W1 vs W2-(BP-K) diagram for the probable members of PraesepeGaiaGaia DR2 identifiermeta.id;meta.maincharSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAGaiaGaia DR2 Right Ascension (J2015.5)degpos.eq.raDEGaiaGaia DR2 Declination (J2015.5)degpos.eq.decRAJ2000Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainW2BPKsThe W2-(Gbp-Ks) color (1)magphot.color;em.opt;em.IRfloate_W2BPKs? Uncertainty in W2-(BP-Ks)magstat.errorfloatnullableHW2W1? The (H-W2)-W1 color (1)magphot.color;em.IR;em.IRfloatnullablee_HW2W1? Uncertainty in (H-W2)-W1magstat.errorfloatnullableJ/AJ/165/45/fig9The diagram (H-W2)-W1 vs W2-(BP-K) for the probable members of NGC 1039SimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGaiaGaia DR2 identifiermeta.id;meta.maincharRAGaiaGaia DR2 Right Ascension (J2015.5)degpos.eq.raDEGaiaGaia DR2 Declination (J2015.5)degpos.eq.decRAJ2000Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainW2BPKsThe W2-(Gbp-Ks) color (1)magphot.color;em.opt;em.IRfloate_W2BPKs? Uncertainty in W2-(BP-Ks)magstat.errorfloatnullableHW2W1? The (H-W2)-W1 color (1)magphot.color;em.IR;em.IRfloatnullablee_HW2W1? Uncertainty in (H-W2)-W1magstat.errorfloatnullable