2024/09/03 by Hikmet Çakmak, T. Yontan, Çakmak, Hikmet +13 · 2 citations
Decision Sciences · Engineering · #3D Modeling in Geospatial Applications #Astrophysics of Galaxies (astro-ph.GA) #Classical mechanics #Computer science #FOS: Physical sciences #Kinematics #Physics #Solar and Stellar Astrophysics (astro-ph.SR) #demographic modeling and climate adaptation
paper · pdf · doi:10.48550/arxiv.2409.02298
published in arXiv (Cornell University) (Cornell University)
openalex publication_date 2024/09/03 · openalex created_date 2024/10/06 · openalex updated_date 2026/07/28
This study outlines a detailed investigation using CCD \it UBV and \it Gaia DR3 data sets of the two open clusters Ruprecht 1 (Rup-1) and Ruprecht 171 (Rup-171). Fundamental astrophysical parameters such as color excesses, photometric metallicities, ages, and isochrone distances were based on \it UBV-data analyses, whereas membership probability calculations, structural and astrophysical parameters, as well as the kinematic analyses were based on \it Gaia DR3-data. We identified 74 and 596 stars as the most probable cluster members with membership probabilities over 50% for Rup-1 and Rup-171, respectively. The color excesses E(B-V) were obtained as 0.166±0.022 and 0.301±0.027 mag for Rup-1 and Rup-171, respectively. Photometric metallicity analyses were performed by considering F-G type main-sequence member stars and found to be [Fe/H]=-0.09± 0.16 and [Fe/H]=-0.20± 0.20 dex for Rup-1 and Rup-171, respectively. Ages and distances were based on both \it UBV and \it Gaia-data analyses; according to isochrone-fitting these values were estimated to be t=580±60 Myr, d=1469±57 pc for Rup-1 and t=2700±200 Myr, d=1509±69 pc for Rup-171. The present-day mass function slope of Rup-1 was estimated as 1.26±0.32 and Rup-171 as 1.53±1.49. Galactic orbit integration analyses showed that both of the clusters might be formed outside the solar circle.