Table · dataset · 2026
TUBITAK UBV Photometry of Roslund 3 & Ruprecht 174
Listed in IVOA Registry (Virtual Observatory)
A 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.
Description
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.
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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.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/170/149 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2025AJ....170..149K ui.adsabs.harvard.edu/abs/2025AJ....170..149K ↗
publication · from IVOA Registry
Catalogue records · 2
- VOResource record dc.g-vo.org/oai.xml?verb=GetRecord&metadataPrefix=ivo_vor&identifier=ivo%3… ↗
metadata API · from IVOA Registry
- Registry record (GAVO) dc.g-vo.org/I/cds.vizier/j/aj/170/149 ↗
catalogue entry · from IVOA Registry
Topics
- Stated by source
- Optical
- From keywords
- Astronomy & Astrophysics
Provenance · 1 source records, 8 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/aj/170/149 | 15 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[field].local:field:astronomy | mapping · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].ivoa_waveband:optical | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| description | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_description |
| license_text | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| publication_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| title | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_title |
| updated_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 |