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Related papers: Open clusters: their kinematics and metellicities

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In this paper we have compiled two new open cluster catalogues. In the first one, there are 119 objects with ages, distances and metallicities available, while in the second one, 144 objects have both absolute proper motion and radial…

Astrophysics · Physics 2009-11-07 L. Chen , J. L. Hou , J. J. Wang

Old open clusters (OCs) can constrain the chemical evolution of the Galactic disc through their metallicity gradients and age-metallicity relation but they are affected by low statistics. This work aims to determine precise and homogeneous…

Astrophysics of Galaxies · Physics 2025-07-23 Qingshun Hu , Caroline Soubiran

We have compiled two new Galactic open cluster catalogues. The first one has 119 objects with age, distance and metallicity data, while the second one has 144 objects with both absolute proper motion and radial velocity data, of which 45…

Astrophysics · Physics 2007-05-23 L. Chen , J. L. Hou , J. J. Wang

Based on an almost complete sample of Galactic open star clusters within 1.8 kpc, we perform a comprehensive statistical analysis of various cluster parameters like spatial position, age, size, mass and extinction in order to understand the…

Astrophysics of Galaxies · Physics 2016-10-18 Yogesh C. Joshi , Andrei Dambis , Anil K. Pandey , Santosh Joshi

Open clusters are known as excellent tools for various topics in Galactic research. For example, they allow accurately tracing the chemical structure of the Galactic disc. However, the metallicity is known only for a rather low percentage…

Solar and Stellar Astrophysics · Physics 2016-01-13 M. Netopil , E. Paunzen , U. Heiter , C. Soubiran

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…

The stellar content of Galactic open clusters is gradually depleted during their evolution as a result of internal relaxation and external interactions. The final residues of the evolution of open clusters are called open cluster remnants,…

Solar and Stellar Astrophysics · Physics 2019-04-03 M. S. Angelo , J. F. C. Santos , W. J. B. Corradi , F. F. S. Maia

Context. Open clusters (OCs) are valuable probes of stellar population characteristics. Their age and metallicity provide insights into the chemical enrichment history of the Milky Way. By studying the metallicity of OCs, we can explore the…

We select from Paper I a sample of 306 massive star clusters observed with the Large Sky Area Multi-Object Fibre Spectroscopic Telescope (LAMOST) in the vicinity fields of M31 and M33 and determine their metallicities, ages and masses.…

In order to understand the Galactic structure, we perform a statistical analysis of the distribution of various cluster parameters based on an almost complete sample of Galactic open clusters yet available. The geometrical and physical…

Astrophysics of Galaxies · Physics 2018-06-13 Y. C. Joshi

We present and analyze kinematics and orbits for a sample of 488 open clusters in the Galaxy. The velocity ellipsoid for our present sample is derived as ($\sigma_{U}$, $\sigma_{V}$, $\sigma_{W})$=$(28.7$, 15.8, 11.0) km s$^{-1}$ which…

Astrophysics of Galaxies · Physics 2009-09-22 Zhen-Yu Wu , Xu Zhou , Jun Ma , Cui-Hua Du

Aims: Based on our well-determined sample of open clusters in the all-sky catalogue ASCC-2.5 we derive new linear sizes of some 600 clusters, and investigate the effect of mass segregation of stars in open clusters. Methods: Using…

Astrophysics · Physics 2016-08-15 E. Schilbach , N. V. Kharchenko , A. E. Piskunov , S. Röser , R. -D. Scholz

Open clusters are unique tracers of the history of our own Galaxy's disk. According to our membership analysis based on \textit{Gaia} astrometry, out of the 226 potential clusters falling in the footprint of GALAH or APOGEE, we find that…

Old open clusters are useful tools to study the Galactic disk properties, both present and past. Populous samples with properties determined both accurately and homogenously are necessary to draw reliable conclusions. We present here our…

Astrophysics · Physics 2007-05-23 A. Bragaglia , M. Tosi , G. Marconi , E. Carretta

Context. Open clusters provide valuable information on stellar nucleosynthesis and the chemical evolution of the Galactic disc, as their age and distances can be measured more precisely with photometry than for field stars. Aims. Our aim is…

Radial migration is an important process in the evolution of the Galactic disk. The metallicity gradient of open clusters and its outliers provide an effective way to probe for this process. In this work, we compile metallicity, age, and…

Astrophysics of Galaxies · Physics 2021-09-29 Haopeng Zhang , Yuqin Chen , Gang Zhao

During the last years and decades several individual studies and large-scale spectroscopic surveys significantly improved our knowledge of the Galactic metallicity distribution based on open clusters. The availability of Gaia data provided…

Astrophysics of Galaxies · Physics 2021-11-09 Martin Netopil , İnci Akkaya Oralhan , Hikmet Çakmak , Raúl Michel , Yüksel Karataş

Open Clusters (OCs) can trace with a great accuracy the evolution of the Galactic disk. The aim of this work is to study the kinematical behavior of the OC population over time. We take advantage of the latest age determinations of OCs to…

We provide a review of the current status of several topics on the ages, distances, and mass functions of open clusters, with a particular emphasis on illuminating the areas of uncertainty. Hipparcos has obtained parallaxes for nearby open…

Astrophysics · Physics 2007-05-23 J. R. Stauffer , R. D. Jeffries , E. L. Martin , D. M. Terndrup

Open clusters offer a unique possibility to study the time evolution of the radial metallicity gradients of several elements in our Galaxy, because they span large intervals in age and Galactocentric distance, and both quantities can be…

Astrophysics · Physics 2009-11-13 Laura Magrini , Paola Sestito , Sofia Randich , Daniele Galli
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