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Related papers: A kinematic study of Open Clusters: implications f…

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We report the discovery of three optical open clusters in the Milky Way. Two clusters are in Scutum (Cluster1 at l=18.44 degrees and b=-0.42 degrees, and Cluster2 at l=19.60 degrees and b=-1.02 degrees), thus projected not far from the…

Astrophysics · Physics 2009-11-10 E. Bica , C. Bonatto , C. M. Dutra

We have been represented the collective information of estimation procedures of parameters of the open clusters and put them together for showing the importance of clusters to understand their role in stellar evolution phenomenon. Moreover,…

Solar and Stellar Astrophysics · Physics 2016-06-24 Gireesh C. Joshi

Open star clusters are dynamic systems whose evolution is critically influenced by initial conditions such as star formation efficiency and orbital parameters. Understanding their dissolution mechanisms provides insight into stellar…

Astrophysics of Galaxies · Physics 2025-03-14 M. Ishchenko , V. Masliukh , M. Hradov , P. Berczik , B. Shukirgaliyev , C. Omarov

We investigate the evolutionary stages of four open clusters, Berkeley 39, Collinder 261, NGC 6819, and NGC 7789, of ages ranging from 1.6 -- 6 Gyr. These clusters have previously been classified into dynamically young and intermediate age…

Astrophysics of Galaxies · Physics 2024-09-17 Shanmugha Balan , Khushboo K Rao , Kaushar Vaidya , Manan Agarwal , Souradeep Bhattacharya

The study of dynamical properties of Galactic open clusters is a fundamental prerequisite for the comprehension of their dissolution processes. In this work, we characterized 12 open clusters, namely: Collinder 258, NGC 6756, Czernik 37,…

Solar and Stellar Astrophysics · Physics 2019-07-10 M. S. Angelo , A. E. Piatti , W. S. Dias , F. F. S. Maia

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 report on high resolution Echelle spectroscopy of 20 giant stars in the Galactic old open clusters NGC 6791 obtained with Hydra at the WIYN telescope. High precision radial velocity allow us to isolate 15 {\it bona fide} cluster members.…

Context. Open clusters are very good tracers of the evolution of the Galactic disc. Thanks to Gaia, their kinematics can be investigated with an unprecedented precision and accuracy. Aims. The distribution of open clusters in the 6D phase…

It has been previously noted that the outermost open clusters in the Milky Way seem to lie in a string-like configuration that is coincident with, and may be associated to, the Galactic anticenter stellar structure (GASS) or the ``Monoceros…

Astrophysics · Physics 2007-05-23 Peter M. Frinchaboy

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

We present a detailed study of NGC 6791, NGC 6811, NGC 6819 and NGC 6866, the four open clusters that are located in the Kepler prime field. We use new CCD UBV(RI)KC photometry, which was combined with Gaia EDR3 photometric/astrometric…

Astrophysics of Galaxies · Physics 2023-03-01 Yüksel Karataş , Hikmet Çakmak , İnci Akkaya Oralhan , Charles Bonatto , Raúl Michel , Martin Netopil

Open clusters potentially provide an ideal environment for the search for transiting extrasolar planets since they feature a relatively large number of stars of the same known age and metallicity at the same distance. With this motivation,…

Astrophysics · Physics 2009-11-10 K. von Braun , B. L. Lee , S. Seager , H. K. C. Yee , G. Mallen-Ornelas , M. D. Gladders

Observations indicate that the fraction of potential binary star clusters in the Magellanic Clouds is about 10%. In contrast, it is widely accepted that the binary cluster frequency in the Galaxy disk is much lower. Here we investigate the…

Astrophysics of Galaxies · Physics 2012-10-08 R. de la Fuente Marcos , C. de la Fuente Marcos

Star clusters are ideal tracers of star formation activity in systems outside the volume that can be studied using individual, resolved stars. These unresolved clusters span orders of magnitude in brightness and mass, and their formation is…

Cosmology and Nongalactic Astrophysics · Physics 2011-07-20 I. S. Konstantopoulos , K. Fedotov , S. C. Gallagher , A. Maybhate , P. R. Durrell , J. C. Charlton

To understand the processes that build up galaxies we investigate the stellar structure and gas kinematics of spiral and irregular galaxies out to redshift 1. We target 92 galaxies in four cluster (z = 0.3 & 0.5) fields to study the…

Cosmology and Nongalactic Astrophysics · Physics 2009-09-17 Bodo L. Ziegler , Elif Kutdemir , Cristiano Da Rocha , Asmus Böhm , Reynier F. Peletier , Miguel Verdugo

The Galactic bulge, that is the prominent out-of-plane over-density present in the inner few kiloparsecs of the Galaxy, is a complex structure, as the morphology, kinematics, chemistry and ages of its stars indicate. To understand the…

Astrophysics of Galaxies · Physics 2016-07-06 P. Di Matteo

We use the largest open clusters catalogue in the post-Gaia era to provide the observational view of the Galactic disk. By compiling the physical parameters like age, distance, and kinematic information, we investigate the spatial…

Astrophysics of Galaxies · Physics 2023-09-08 Yogesh C. Joshi , Sagar Malhotra

Almost 80 years have passed since Trumpler's analysis of the Galactic open cluster system laid one of the main foundations for understanding the nature and structure of the Milky Way. Since then, the open cluster system has been recognised…

Astrophysics of Galaxies · Physics 2015-05-14 Andre Moitinho

We present a spectro-photometric survey of 2522 extragalactic globular clusters (GCs) around twelve early-type galaxies, nine of which have not been published previously. Combining space-based and multi-colour wide field ground-based…

The internal dynamics of multiple stellar populations in Globular Clusters (GCs) provides unique constraints on the physical processes responsible for their formation. Specifically, the present-day kinematics of cluster stars, such as…