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

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Open clusters are known as excellent tracers of the structure and chemical evolution of the Galactic disk, however, the accuracy and reliability of open cluster parameters is poorly known. In recent years, several studies aimed to present…

Solar and Stellar Astrophysics · Physics 2015-09-30 M. Netopil , E. Paunzen , G. Carraro

Context. Galactic open clusters (OCs) mainly belong to the young stellar population in the Milky Way disk, but are there groups and complexes of OCs that possibly define an additional level in hierarchical star formation? Current…

We present an overview of observational progress in the study of extragalactic globular cluster systems. Globular clusters turn out to be excellent tracers not only for the star-formation histories in galaxies, but also for kinematics at…

Astrophysics · Physics 2007-05-23 Markus Kissler-Patig

We have obtained CCD UBVI_{KC} photometry down to V ~ 21.0 for the open clusters Berkeley 26, Czernik 27, Melotte 72, NGC 2479 and BH 37. The latter has never been studied before. Cluster stellar density profiles were obtained from star…

Astrophysics of Galaxies · Physics 2015-05-14 Andres E. Piatti , Juan J. Claria , Andrea V. Ahumada

Classical Cepheids in open clusters play an important role in benchmarking stellar evolution models, anchoring the cosmic distance scale, and invariably securing the Hubble constant. NGC 6649, NGC 6664 and Berkeley 55 are three pertinent…

Astrophysics of Galaxies · Physics 2021-01-04 J. Alonso-Santiago , I. Negueruela , A. Marco , H. M. Tabernero , N. Castro

The clustered nature of star formation should produce a high degree of structure in the combined phase and chemical space in the Galactic disk. To date, observed structure of this kind has been mostly limited to bound clusters and moving…

Astrophysics of Galaxies · Physics 2019-11-06 Harshil Kamdar , Charlie Conroy , Yuan-Sen Ting , Ana Bonaca , Benjamin Johnson , Phillip Cargile

We present mean proper motions and membership probabilities of individual stars for optically visible open clusters, which have been determined using data from the UCAC5 catalog. This follows our previous studies with the UCAC2 and UCAC4…

Solar and Stellar Astrophysics · Physics 2018-06-13 W. S. Dias , H. Monteiro , M. Assafin

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

Globular clusters (GCs) are the most ancient stellar systems in the Milky Way. Therefore, they play a key role in the understanding of the early chemical and dynamical evolution of our Galaxy. Around $40\%$ of them are placed within $\sim4$…

Astrophysics of Galaxies · Physics 2020-01-08 Angeles Pérez-Villegas , Beatriz Barbuy , Leandro Kerber , Sergio Ortolani , Stefano O. Souza , Eduardo Bica

We use the open clusters (OCs) with known parameters available in the WEBDA database and in recently published papers to derive properties related to the disk structure. The sample totals 654 OCs, consisting basically of Trumpler types I to…

Astrophysics · Physics 2009-11-11 C. Bonatto , L. O. Kerber , E. Bica , B. X. Santiago

We present a detailed analysis of the kinematics of 112 stars that mostly comprise the high velocity S-cluster and orbit the super massive black hole SgrA* at the center of the Milky Way. For 39 of them orbital elements are known, for the…

A systematic search of the 2MASS point source catalog, covering 47% of the sky, was carried out aiming to reveal any hidden globular clusters in our Galaxy. Eight new star clusters were discovered by a search algorithm based on finding…

Astrophysics · Physics 2009-11-07 V. D. Ivanov , J. Borissova , P. Pessev , G. R. Ivanov , R. Kurtev

Our knowledge of stellar evolution and of the structure and chemical evolution of the Galactic disk largely builds on the study of open star clusters. Because of their crucial role in these relevant topics, large homogeneous catalogues of…

Astrophysics of Galaxies · Physics 2017-06-28 Giovanni Carraro , Anton F. Seleznev , G. Baume , E. Costa

The Gaia-ESO survey is a large public spectroscopic survey aimed at investigating the origin and formation history of our Galaxy by collecting spectroscopy of representative samples (about 10^5 Milky Way stars) of all Galactic stellar…

The outer parts of the Milky Way disk are believed to be one of the main arenas where the accretion of external material in the form of dwarf galaxies and subsequent formation of streams is taking place. The Monoceros stream and the Canis…

Globular clusters (GCs) are old massive star clusters that serve as `fossils' of galaxy formation. The advent of Gaia observatory has enabled detailed kinematics studies of the Galactic GCs and revolutionized our understanding of the…

Astrophysics of Galaxies · Physics 2022-07-12 Yingtian Chen , Oleg Y. Gnedin

Open clusters are the only example of single-age, single initial chemical composition populations in the Galaxy, and they play an important role in the study of the formation and evolution of the Galactic disk. In addition, they have been…

Solar and Stellar Astrophysics · Physics 2015-06-22 Maurizio Salaris

This paper is part of a project to search the inner Milky Way for hidden massive clusters and to address the question of whether our Galaxy still forms clusters similar to the progenitors of the present-day globular clusters. We report high…

Astrophysics · Physics 2009-11-10 J. Borissova , V. D. Ivanov , D. Minniti , D. Geisler , A. W. Stephens

AIMS: In their 1st extension to the Milky Way Star Clusters (MWSC) survey, Schmeja et al. applied photometric filters to the 2MASS to find new cluster candidates that were subsequently confirmed or rejected by the MWSC pipeline. To further…

Solar and Stellar Astrophysics · Physics 2015-09-02 R. -D. Scholz , N. V. Kharchenko , A. E. Piskunov , S. Röser , E. Schilbach

The detection of magnetic chemically peculiar (CP2) stars in open clusters of the Milky Way can be used to study the influence of different galactic environments on the (non-)presence of peculiarities, which has to be taken into account in…

Astrophysics · Physics 2009-11-11 E. Paunzen , M. Netopil , I. Kh. Iliev , H. M. Maitzen , A. Claret , O. I. Pintado