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In this study, we examined the nearby open clusters (OCs) Alessi 36 and Collinder 135. Their spatial proximity was assessed using photometric and astrometric data from \textit{Gaia} DR3. Likely member stars were identified based on a…

Astrophysics of Galaxies · Physics 2025-09-19 Hülya Karagöz , Deniz Cennet Çınar , Seval Taşdemir , Remziye Canbay

With the release of Gaia data, the number of known Galactic open clusters (OCs) has increased rapidly, providing an excellent opportunity to confirm more binary open clusters in the Milky Way. Using a recently released OC catalogue, we…

Astrophysics of Galaxies · Physics 2025-08-28 Zhongmu Li , Zhanpeng Zhu

This paper presents a deep investigation of two open clusters, Haffner 22 and Melotte 71, using astrometric and photometric data from Gaia EDR3. We identified 382 and 597 most probable cluster members with membership probability higher than…

Astrophysics of Galaxies · Physics 2022-05-04 D. Bisht , Quingfeng Zhu , R. K. S. Yadav , Geeta Rangwal , Devesh P. Sariya , Alok Durgapal , Ing-Guey Jiang

We present a robust methodology for identifying photometric binaries in star clusters. Using Gaia DR3, Pan-STARRS and 2MASS data, we self-consistently define the cluster parameters and binary demographics for the open clusters (OCs) NGC…

Solar and Stellar Astrophysics · Physics 2023-12-22 Anna C. Childs , Aaron M. Geller , Ted von Hippel , Erin Motherway , Claire Zwicker

We present a detailed photometric and kinematical analysis of poorly studied open cluster IC 1434 using CCD VRI, APASS, and Gaia DR2 database for the first time. BY determining the membership probability of stars, we identified the 238 most…

Solar and Stellar Astrophysics · Physics 2021-09-29 Y. H. M. Hendy , D. Bisht

We present an analysis of three southern open star clusters NGC 6067, NGC 2506 and IC 4651 using wide-field photometric and Gaia DR2 astrometric data. They are poorly studied clusters. We took advantage of the synergy between Gaia DR2 high…

Astrophysics of Galaxies · Physics 2019-10-02 Geeta Rangwal , R. K. S. Yadav , Alok Durgapal , D. Bisht , D. Nardiello

We present photometric, astrometric, and kinematic studies of the old open star clusters NGC 1193 and NGC 1798. Both of the clusters are investigated by combining data sets from Gaia EDR3 and CCD UBV observational data. Analysis of the…

Astrophysics of Galaxies · Physics 2022-10-12 T. Yontan , H. Cakmak , S. Bilir , T. Banks , M. Raul , R. Canbay , S. Koc , S. Tasdemir , H. Ercay , B. Tanik Ozturk , D. C. Dursun

In this study, we develop a membership identification method and apply it for 30 open clusters (OCs) within 200 pc of the Sun using astrometric data of Gaia DR3. By accounting for projection effects that distort apparent stellar motions,…

Solar and Stellar Astrophysics · Physics 2025-04-14 Penghui Liu , Min Fang , Yue-Lin Sming Tsai , Xiaoying Pang , Fan Wang , Xiaoting Fu

We present a study of 7 southern open clusters based on UBVRI CCD photomety (Johnsons-Cousins system) and Gaia DR2 data. Dias 4, Dias 6 and four other clusters had UBVRI photometric observations determined for the first time. From the…

Solar and Stellar Astrophysics · Physics 2018-09-05 Wilton S. Dias , Hektor Monteiro , Jacques R. D. Lépine , R. Prates , C. D. Gneiding , M. Sacchi

In this study, we considered the optical wavelength of Gaia DR3 to analyze poorly studied three newly open star clusters namely OCSN 203, OCSN 213, and OCSN 244 clusters with ASTECA code. Here, we identified candidates of 227, 200, and 551…

Solar and Stellar Astrophysics · Physics 2024-12-12 W. H. Elsanhoury , Haroon A. A , E. A. Elkholy , D. C. Çınar

Astrophysical parameters (\textit{age, reddening, distance, core and cluster radii}) of 14 open clusters (OCs) projected close to the Galactic plane are derived with 2MASS photometry. The OCs are Be 63, Be 84, Cz 6, Cz 7, Cz 12, Ru 141, Ru…

Astrophysics of Galaxies · Physics 2012-04-02 Denilso Camargo , Charles Bonatto , Eduardo Bica

We present a comprehensive analysis of four young open clusters, NGC 663, NGC 2301, NGC 2384, and NGC 7510, utilizing high-precision astrometric and photometric data from Gaia DR3. Cluster membership was determined using the UPMASK…

Astrophysics of Galaxies · Physics 2026-01-05 W. H. Elsanhoury , S. Taşdemir , D. C. Çınar , R. Canbay , A. A. Haroon , A. Ahmed

This study provides a detailed examination of the structural, astrophysical, kinematic, and dynamical properties of the open clusters COIN-Gaia 24, Czernik 24, FSR 0893, and UBC 74, which are located in the direction opposite to the…

Astrophysics of Galaxies · Physics 2026-02-27 Selçuk Bilir , Seval Taşdemir , Ege Eraydın , Deniz Cennet Çınar , Jeison Alfonso , Remziye Canbay

Context. Observations indicate that the fraction of potential binary star clusters in the Milky Way is either the same or lower than that of the Magellanic Clouds. The unprecedented precision in the parallax measurements by Gaia has allowed…

Solar and Stellar Astrophysics · Physics 2022-10-12 Fangfang Song , Ali Esamdin , Qingshun Hu , Mengfan Zhang

Context. Open clusters (OCs) are groups of stars formed from the same cloud of gas and cosmic dust. They play an important role in studies of star formation and evolution and our understanding of galaxy structure and dynamics. Aims. The…

Fundamental parameters and physical processes leading to the formation of white dwarfs (WDs) may be constrained and refined by discovering WDs in open clusters (OCs). Cluster membership can be utilized to establish the precise distances,…

Solar and Stellar Astrophysics · Physics 2021-01-04 M. Prišegen , M. Piecka , N. Faltová , M. Kajan , E. Paunzen

We analysed the open clusters Czernik 2 and NGC 7654 using CCD UBV photometric and Gaia Early Data Release 3 (EDR3) photometric and astrometric data. Structural parameters of the two clusters were derived, including the physical sizes of…

Astrophysics of Galaxies · Physics 2021-08-11 B. Akbulut , S. Ak , T. Yontan , S. Bilir , T. Ak , T. Banks , E. Kaan Ulgen , E. Paunzen

In the Gaia era, a comprehensive analysis of the binary open clusters NGC 869 (h Persei) and NGC 884 (chi Persei) system has been conducted to investigate its structural, astrophysical, kinematic, and Galactic orbital properties, along with…

Astrophysics of Galaxies · Physics 2026-01-26 Seval Taşdemir , Waleed Elsanhoury , Deniz Cennet Çınar , Aly Haroon , Selçuk Bilir

Using high-precision observations from the space-based \textit{Gaia} and \textit{TESS} missions, complemented by ground-based spectroscopic data and multi-band photometric surveys, we perform a detailed investigation of the Galactic open…

Solar and Stellar Astrophysics · Physics 2025-10-09 K. Yakut , B. Kalomeni , S. Rappaport , Veselin Kostov

We present a statistical and multiwavelength photometric studies of young open cluster IC 1590. We identified 91 cluster members using $Gaia$ DR3 astrometry data using ensemble-based unsupervised machine learning techniques. From $Gaia$…

Astrophysics of Galaxies · Physics 2024-02-26 A. H. Sheikh , Biman J. Medhi
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