Photometric and Kinematic Studies of Open Clusters Ruprecht 1 and Ruprecht 171

ÇAKMAK H., YONTAN T., BİLİR S., Banks T. S., Michel R., SOYDUGAN E., ...More

Astronomische Nachrichten, vol.345, no.8, 2024 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 345 Issue: 8
  • Publication Date: 2024
  • Doi Number: 10.1002/asna.20240054
  • Journal Name: Astronomische Nachrichten
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, L'Année philologique, Aerospace Database, INSPEC, zbMATH
  • Keywords: galaxy: disk, galaxy: open clusters and associations: individual: Ruprecht 1 and Ruprecht 171, stars: Hertzsprung–Russell and color-magnitude diagrams
  • Çanakkale Onsekiz Mart University Affiliated: Yes

Abstract

This study outlines a detailed investigation using CCD UBV and 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 UBV-data analyses, whereas membership probability calculations, structural and astrophysical parameters, as well as the kinematic analyses were based on 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 (Formula presented.) were obtained as (Formula presented.) and (Formula presented.) 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 (Formula presented.) and (Formula presented.) dex for Rup-1 and Rup-171, respectively. Ages and distances were based on both UBV and Gaia-data analyses; according to isochrone-fitting these values were estimated to be (Formula presented.) Myr, (Formula presented.) pc for Rup-1 and (Formula presented.) Myr, (Formula presented.) pc for Rup-171. The present-day mass function slope of Rup-1 was estimated as (Formula presented.) and Rup-171 as (Formula presented.). Galactic orbit integration analyses showed that both of the clusters might be formed outside the solar circle.