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We present an investigation of the open cluster Trumpler 2 using Gaia DR3 photometric, astrometric and spectroscopic data. 92 stars were identified as likely members of the cluster, with membership probabilities greater than 0.5. The mean…

Astrophysics of Galaxies · Physics 2023-04-28 S. Tasdemir , T. Yontan

In this study, we utilize photometric and kinematic data from \textit{Gaia} DR3 and the {\sc ASteCA} package to analyze the sparsely studied open clusters, King 2 and King 5. For King 2, we identify 340 probable members with membership…

Astrophysics of Galaxies · Physics 2025-03-25 Aly Haroon , Waleed Elsanhoury , Essam Elkholy , Abdel naby Saad , Deniz Cennet Çınar

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

In this paper, we have used the Gaia's Data Release-3 (DR3) data to study an intermediate-age open cluster Berkeley 27 (Be 27). A total of 131 most probable cluster members are picked within the cluster's radius based on the membership…

Astrophysics of Galaxies · Physics 2022-10-12 Devesh P. Sariya , Ing-Guey Jiang , D. Bisht , R. K. S. Yadav , G. Rangwal

This paper presents an investigation of an old age open cluster King 11 using Gaia's Early Data Release 3 (EDR3) data. Considering the stars with membership probability ($P_{\mu}$) $> 90\%$, we identified 676 most probable cluster members…

Astrophysics of Galaxies · Physics 2021-09-22 Devesh P. Sariya , Ing-Guey Jiang , D. Bisht , M. D. Sizova , N. V. Chupina , S. V. Vereshchagin , R. K. S. Yadav , G. Rangwal

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

The high-precision {\it Gaia} data release 3 (DR3) enables the discovery of numerous open clusters in the Milky Way, providing an excellent opportunity to search for blue straggler stars in open clusters and investigate their formation and…

Solar and Stellar Astrophysics · Physics 2025-11-11 Songmei Qin , Jing Zhong , Friedrich Anders , Lola Balaguer-Núñez , Chunyan Li , Yueyue Jiang , Guimei Liu , Tong Tang , Li Chen

Blue Stragglers are stars located in an unexpected region of the color-magnitude diagram of a stellar population, as they appear bluer and more luminous than the stars in the turnoff region. They are ubiquitous, since they have been found…

Solar and Stellar Astrophysics · Physics 2020-01-29 M. J. Rain , G. Carraro , J. A. Ahumada , S. Villanova , H. Boffin , L. Monaco , G. Beccari

We identified blue straggler stars (BSSs) in 53 open clusters utilizing data from Gaia DR3. Most of these clusters are situated in the outer regions of the Galactic disc, encompassing structures such as the warp and the Outer arm. We…

Solar and Stellar Astrophysics · Physics 2025-02-27 Qian Cui , Zhihong He , Shunhong Deng , Liming Peng , Chunyan Li , Yangping Luo , Kun Wang

We present CCD $UBVI$ photometric study of poorly studied intermediate age open cluster SAI 35 (Juchert 20) for the first time. To accomplish this study, we also used LAMOST DR5, 2MASS, and Gaia EDR3 databases. We identified 214 most…

Astrophysics of Galaxies · Physics 2021-03-24 D. Bisht , Qingfeng Zhu , R. K. S. Yadav , Geeta Rangwal , Alok Durgapal , Devesh P. Sariya , Ing-Guey Jiang

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 conducted an in-depth analysis of NGC 6793 open cluster via Gaia DR3 data, including astrometric, spectroscopic, and photometric measurements. Selection of 147 stars, which show membership probabilities $P\geq0.5$ were classified as…

Astrophysics of Galaxies · Physics 2025-03-26 Seval Taşdemir , Deniz Cennet Çınar , Remziye Canbay , Serkan Taştan , Waleed Elsanhoury , Aly Haroon

We perform a systematic reanalysis of the age distribution of Galactic open star clusters. Using a catalogue of homogeneously determined ages for 834 open clusters contained in a 2 kpc cylinder around the Sun and characterised with…

We aim to identify the cluster members, estimate cluster properties, study the dynamical state of the clusters as a function of mass, trace the existence of dynamical effects in massive stars, and check for spatial patterns of members in…

Solar and Stellar Astrophysics · Physics 2025-10-21 Harsha K. H. , Annapurni Subramaniam , S. R. Dhanush , Hariharan D. S

Using data from the Gaia Data Release 3 (Gaia DR3) and Kepler/K2, we present a catalog of 16 open clusters with ages ranging from 4 to 4000 Myr, which provides detailed information on membership, binary systems, and rotation. We assess the…

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

The particularly abundant presence of blue straggler stars (BSS) in Galactic open clusters offers favorable conditions for detailed studies on the statistical properties and the origin of the blue straggler population. With the help of Gaia…

Astrophysics of Galaxies · Physics 2023-04-12 Chunyan Li , Jing Zhong , Songmei Qin , Li Chen

In this study, we investigate the fundamental astrophysical parameters of the old open cluster NGC 188 through two complementary methods: isochron-fitting and spectral energy distribution (SED) analysis. Using photometric, astrometric, and…

Astrophysics of Galaxies · Physics 2024-12-11 Deniz Cennet Dursun , Seval Taşdemir , Seliz Koç , Srishti İyer

With an apparent cluster diameter of 1.5{\deg} and an age of ~4 Myr, Trumpler 37 is an ideal target for photometric monitoring of young stars as well as for the search of planetary transits, eclipsing binaries and other sources of…

We report a detailed investigation of three intermediate-to-old age open clusters, Berkeley 17, Berkeley 18, and Berkeley 39, utilizing precise astrometric and photometric data from Gaia DR3. Cluster membership was robustly determined…

Astrophysics of Galaxies · Physics 2026-01-22 A. Ahmed , W. H. Elsanhoury , D. C. Çınar , S. Taşdemir , R. Canbay , A. A. Haroon , M. S. Alenazi
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