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Related papers: Characterizing dynamical states of Galactic open c…

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In this study, we characterized 16 objects previously classified as faint or low contrast Galactic open clusters (OCs). We employed parameters associated to the OCs dynamical evolution: core ($r_c$), tidal ($r_t$) and half-mass ($r_{hm}$)…

Solar and Stellar Astrophysics · Physics 2020-02-21 M. S. Angelo , J. F. C. Santos , W. J. B. Corradi

Most stars in our Galaxy form in stellar aggregates, which can become long-lived structures called open clusters (OCs). Along their dynamical evolution, their gradual depletion leave some imprints on their structure. In this work, we…

Astrophysics of Galaxies · Physics 2023-04-19 M. S. Angelo , J. F. C. Santos , F. F. S. Maia , W. J. B. Corradi

Galactic open clusters (OCs) are subject to internal and external destructive effects that gradually deplete their stellar content, leaving imprints on their structure. To investigate their dynamical state from an observational perspective,…

Astrophysics of Galaxies · Physics 2025-04-10 M. S. Angelo , J. F. C. Santos , W. J. B. Corradi , F. F. S. Maia

We report the discovery of 25 new open clusters resulting from a search in dense low galactic latitude fields. We also provide, for the first time, structural and astrophysical parameters for the new findings and 34 other recently…

Solar and Stellar Astrophysics · Physics 2020-06-24 Filipe A. Ferreira , J. F. C. Santos , W. J. B. Corradi , F. F. S. Maia , M. S. Angelo

Reliable fundamental parameters of open clusters such as distance, age and extinction are key to our understanding of Galactic structure and stellar evolution. In this work we use {\it Gaia} DR2 to investigate 45 open clusters listed in the…

Solar and Stellar Astrophysics · Physics 2020-10-07 H. Monteiro , W. S. Dias , A. Moitinho , T. Cantat-Gaudin , J. R. D. Lépine , G. , Carraro , E. Paunzen

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…

Open clusters are convenient probes of the structure and history of the Galactic disk. They are also fundamental to stellar evolution studies. The second Gaia data release contains precise astrometry at the sub-milliarcsecond level and…

Context. Most stars from in groups which with time disperse, building the field population of their host galaxy. In the Milky Way, open clusters have been continuously forming in the disk up to the present time, providing it with stars…

Astrophysics of Galaxies · Physics 2023-09-08 Pedro Guilherme-Garcia , Alberto Krone-Martins , André Moitinho

Context: Open clusters' dynamical evolution is driven by stellar evolution, internal dynamics and external forces, which according to dynamical simulations, will evaporate them in a timescale of about 1 Ga. However, about 10\% of the known…

Astrophysics of Galaxies · Physics 2024-07-03 N. Alvarez-Baena , R. Carrera , H. Thompson , L. Balaguer-Nuñez , A. Bragaglia , C. Jordi , E. Silva-Villa , A. Vallenari

In this work we explore the new catalog of galactic open clusters that became available recently, containing 1750 clusters that have been re-analysed using the Gaia DR2 catalog to determine the stellar memberships. We used the young open…

Astrophysics of Galaxies · Physics 2021-04-02 H. Monteiro , D. A. Barros , W. S. Dias , J. R. D. Lépine

The distribution of member stars in the surroundings of an Open Cluster (OC) can shed light on the process of its formation, evolution and dissolution. The analysis of structural parameters of OCs as a function of their age and position in…

Astrophysics of Galaxies · Physics 2022-03-14 Y. Tarricq , C. Soubiran , L. Casamiquela , A. Castro-Ginard , J. Olivares , N. Miret-Roig , P. A. B. Galli

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

We present the dynamical evolution of ten open clusters which were part of our previous studies. These clusters include both young and intermediate-age open clusters with ages ranging from 25$\pm$19 Myr to 1.78$\pm$0.20 Gyr. The total mass…

Astrophysics of Galaxies · Physics 2023-07-19 Jayanand Maurya , Y. C. Joshi , Manash Ranjan Samal , Vineet Rawat , Anubha Singh Gour

A number of stellar open cluster (OC) pairs in the Milky Way occupy similar positions in the phase space (coordinates, parallax and proper motions) and therefore may constitute physically interacting systems. The characterization of such…

Astrophysics of Galaxies · Physics 2022-01-12 M. S. Angelo , J. F. C. Santos , F. F. S. Maia , W. J. B. Corradi

Very precise observational data are needed for studying the stellar cluster parameters (distance, reddening, age, metallicity) and cluster internal kinematics. In turn, these give us an insight into the properties of our Galaxy, for…

Astrophysics of Galaxies · Physics 2021-07-16 Martin Piecka , Ernst Paunzen

The Gaia mission has opened a new window into the internal kinematics of young star clusters at the sub-km/s level, with implications for our understanding of how star clusters form and evolve. We use a sample of 28 clusters and…

Astrophysics of Galaxies · Physics 2019-01-09 Michael A. Kuhn , Lynne A. Hillenbrand , Alison Sills , Eric D. Feigelson , Konstantin V. Getman

Open Clusters are born and evolve along the Milky Way plane, on them is imprinted the history of the Galactic disc, including the chemical and dynamical evolution. Chemical and dynamical properties of open clusters can be derived from…

A rare multiple open cluster system has been analyzed using Gaia DR3 astrometry and photometry data. Using Agglomerative Hierarchical clustering and Bayesian-HDBSCAN, we identify a compact core consisting of seven known open clusters and…

Astrophysics of Galaxies · Physics 2026-04-28 Muhammad Akmal Husain , Ferdinand , Mochamad Ikbal Arifyanto , Muhammad Irfan Hakim

In this paper, we present a novel view on the morphology and the dynamical state of 10 prominent, nearby ($\leq$ 500 pc), and young ($\sim$30-300 Myr) open star clusters with Gaia DR2: $\alpha\,$Per, Blanco 1, IC 2602, IC 2391, Messier 39,…

Astrophysics of Galaxies · Physics 2021-07-26 Stefan Meingast , João Alves , Alena Rottensteiner

In Gaia DR2, the unprecedented high-precision level reached in sub-mas for astrometry and mmag for photometry. Using cluster members identified with these astrometry and photometry in Gaia DR2, we can obtain a reliable determination of…

Astrophysics of Galaxies · Physics 2020-09-02 Jing Zhong , Li Chen , Di Wu , Lu Li , Leya Bai , Jinliang Hou
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