J/AJ/170/149ivo://CDS.VizieR/J/AJ/170/149CDSKaragoz H.Yontan T.Bilir S.Plevne O.Ak T.Ak S.Canbay R.,Banks T.2026-06-30T11:22:23Z2026-06-29T15:43:02ZCDS support team

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

cds-question@unistra.fropen-star-clustersvisible-astronomybroad-band-photometryproper-motionstrigonometric-parallaxtwo-color-diagramsA detailed analysis of the structural, astrophysical, kinematic, and dynamical properties of the open clusters Roslund 3 and Ruprecht 174 is carried out using CCD UBV photometry in conjunction with astrometric and photometric data from Gaia DR3. Membership probabilities were computed via the UPMASK algorithm applied to Gaia proper motions and trigonometric parallaxes, leading to the identification of 198 likely members for Roslund 3 and 397 for Ruprecht 174. Astrophysical parameters were derived using both the classical approach, where parameters are independently determined, and a Markov chain Monte Carlo technique, which estimates them simultaneously. The agreement between the results from both methods confirms their reliability and highlights the robustness of the classical method. The reddening values were determined as E(B-V)=0.410+/-0.046mag for Roslund 3 and E(B-V)=0.615+/-0.042mag for Ruprecht 174. The estimated distances are d=1687+/-121pc for Roslund 3 and d=2385+/-163pc for Ruprecht 174. Both clusters exhibit metallicities close to the solar value, with [Fe/H]=0.030+/-0.065dex for Roslund 3 and [Fe/H]=0.041+/-0.064dex for Ruprecht 174. The corresponding ages were found to be {tau}=60+/-6 and {tau}=520+/-50Myr, respectively. The present-day mass function slopes were found to be 1.18+/-0.13 for Roslund 3 and 1.53+/-0.30 for Ruprecht 174, consistent with the canonical Salpeter value within uncertainties. Galactic orbital analyses indicate that both clusters are thin-disk members confined within the Solar circle. Additionally, relaxation times and spatial distributions of stars suggest that both clusters have reached dynamical relaxation and exhibit clear signs of mass segregation.2025AJ....170..149Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/170/149CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/317 : The PPMXL Catalog (Roeser+ 2010)I/322A : UCAC4 Catalogue (Zacharias+, 2012)I/355 : Gaia DR3 Part 1. Main source (Gaia Collaboration, 2022)II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)J/A+A/333/897 : Mass segregation in open clusters (Raboud+ 1998)J/A+AS/141/491 : Chemical composition of halo and disk stars (Nissen+, 2000)J/A+A/438/1163 : Catalogue of Open Cluster Data (COCD) (Kharchenko+, 2005)J/A+A/446/949 : Open clusters proper motions based on UCAC2 (Dias+, 2006)J/A+A/504/681 : Integrated BVJHKs for 650 open clusters (Kharchenko+, 2009)J/MNRAS/399/2146 : Orbits of open clusters in the Galaxy (Wu+, 2009)J/MNRAS/407/2109 : Kinematic study of open clusters (Vande Putte+, 2010)J/AJ/141/92 : BVI photometry of 10 distant open clusters (Janes+, 2011)J/A+A/558/A53 : Milky Way global surv. of star clust. II. (Kharchenko+, 2013)J/A+A/564/A79 : Proper motions of open clusters from UCAC4 (Dias+, 2014)J/MNRAS/453/1095 : NGC 6866 UBVRI photometry (Bostanci+, 2015)J/other/ApSS/355.267 : NGC 6811 CCD UBVRI photometry (Yontan+, 2015)J/other/ApSS/361.126 : NGC 6819 CCD UBV photometry (Ak+, 2016)J/other/ASpR/58.1900 : NGC 225 CCD UBV photometry (Bilir+, 2016)J/other/ApSS/361.126 : NGC 6819 CCD UBV photometry (Ak+, 2016)J/AJ/153/99 : Galactic outer disk: a field toward Tombaugh 1 (Carraro+, 2017)J/other/AstBu/72.257 : Homogeneous Cat. of Open Cluster Param. (Loktin+, 2017)J/A+A/618/A93 : Gaia DR2 open clusters in the Milky Way (Cantat-Gaudin+, 2018)J/MNRAS/478/5184 : UCAC5 open clusters membership & proper motion (Dias+, 2018)J/MNRAS/479/5491 : Absolute parameters of 509 main-sequence stars (Eker+, 2018)J/A+A/619/A155 : Open cluster kinematics with Gaia DR2 (Soubiran+, 2018)J/A+A/623/A108 : Age of 269 GDR2 open clusters (Bossini+, 2019)J/ApJS/245/32 : Newly identified star clusters in Gaia DR2 (Liu+, 2019)J/A+A/623/A108 : Age of 269 GDR2 open clusters (Bossini+, 2019)J/A+A/633/A99 : Gaia DR2 open clusters in the MW. II (Cantat-Gaudin+, 2020)J/A+A/640/A1 : Portrait Galactic disc (Cantat-Gaudin+, 2020)J/MNRAS/494/4713 : Study of NGC 381, NGC 2360 and Berkeley 68 (Maurya+, 2020)J/other/ApSS/366.68 : Czernik 2 & NGC 7554 CCD UBV photometry (Akbulut+, 2021)J/MNRAS/504/356 : Updated parameters of 1743 open clusters (Dias+, 2021)J/A+A/652/A102 : 3794 open clusters parameters (Hao+, 2021)J/A+A/647/A19 : 3D Kinematics and age of OCs (Tarricq+, 2021)J/AN/342/538 : Frolov 1 and NGC 7510 CCD UBV photometry (Yontan+, 2021)J/AJ/163/191 : Photometry & astrometry in NGC 1664 & NGC 6939 (Koc+, 2022)J/AJ/166/263 : UBV & Gaia DR3 photometry of King 6 & NGC 1605 (Gokmen+, 2023)J/A+A/673/A114 : Improving the open cluster census. II. (Hunt+, 2023)J/AJ/165/79 : Catalogs for Berkeley 68 and Stock 20 (Yontan, 2023)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/170/149https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/170/149http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/170/149https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/170/149https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/170/149http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/170/149GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/170/149/table5 (TUBITAK and Gaia DR3 catalogs for Roslund 3 and Ruprecht 174)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/170/149/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/170/149/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/170/149/table5?GETtext/xml+votable180.050000true299.513208320.38800280.0055555555555555566/12955 12958 13291 13294 14657 146601.9867573869263685e-19 3.916500758235022e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/170/149?format=asciiOpticaldefaultJ/AJ/170/149/table5TUBITAK and Gaia DR3 catalogs for Roslund 3 and Ruprecht 174recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterOpen cluster name (1)meta.id.parentcharID[1/6999] Identifiermeta.id;meta.mainintRAJ2000Hour of right ascension (J2000)pos.eq.ra;meta.mainindexedDEJ2000Degree of declination (J2000)pos.eq.dec;meta.mainindexedVmag[9/21.3] Apparent magnitude in V-bandmagphot.mag;em.opt.Vfloate_Vmag[1e-3/0.11] Uncertainty in Vmagmagstat.error;phot.mag;em.opt.VfloatU-B[-4/3.3]? U-B colormagphot.color;em.opt.U;em.opt.Bfloatnullablee_U-B[1e-3/1]? Uncertainty in U-Bmagstat.error;phot.color;em.opt.UfloatnullableB-V[-0.62/5.51]? B-V colormagphot.color;em.opt.B;em.opt.Vfloatnullablee_B-V[1e-3/0.31]? Uncertainty in B-Vmagstat.error;phot.color;em.opt.BfloatnullableGmag[7.5/21.22] Apparent magnitude in G-band from Gaia DR3 (I/350)magphot.mag;em.optfloate_Gmag[3e-3/0.05] Uncertainty in Gmagmagstat.error;phot.mag;em.optfloatBP-RP[3.8e-2/5.9]? Gaia DR3 BP-RP colormagphot.color;em.opt.B;em.opt.Rfloatnullablee_BP-RP[5e-3/7.9]? Uncertainty in BP-RPmagstat.error;phot.color;em.opt.BfloatnullablepmRA[-29.5/38.3]? Proper motion in direction of right ascension from Gaia DR3mas/yrpos.pm;pos.eq.rafloatnullablee_pmRA[9e-3/16.5]? Uncertainty in pmRAmas/yrstat.error;pos.pm;pos.eq.rafloatnullablepmDE[-101/56.2]? Proper motion in direction of declination from Gaia DR3mas/yrpos.pm;pos.eq.decdoublenullablee_pmDE[0.01/11.71]? Uncertainty in pmDEmas/yrstat.error;pos.pm;pos.eq.decfloatnullableplx[-8.8/13.2]? Parallax from Gaia DR3maspos.parallax.trigfloatnullablee_plx[9e-3/2.2]? Uncertainty in plxmasstat.error;pos.parallaxfloatnullableProb[0/1] Membership probabilitystat.probabilityfloat