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Although they are the main constituents of the Galactic disk population, for half of the open clusters in the Milky Way reported in the literature nothing is known except the raw position and an approximate size. The main goal of this study…

Astrophysics of Galaxies · Physics 2015-06-17 N. V. Kharchenko , A. E. Piskunov , E. Schilbach , S. Röser , R. -D. Scholz

The main goal of our project is to obtain a complete picture of individual open clusters from homogeneous data and then search for correlations between their astrophysical parameters. The near-infrared JHKS photometric data from the…

Solar and Stellar Astrophysics · Physics 2011-07-27 Ł. Bukowiecki , G. Maciejewski , P. Konorski , A. Strobel

Astrophysical parameters (\textit{age, reddening, distance, core and cluster radii}) of 14 open clusters (OCs) projected close to the Galactic plane are derived with 2MASS photometry. The OCs are Be 63, Be 84, Cz 6, Cz 7, Cz 12, Ru 141, Ru…

Astrophysics of Galaxies · Physics 2012-04-02 Denilso Camargo , Charles Bonatto , Eduardo Bica

The main aim of this paper is to study the astrophysical behavior of open clusters' properties along the Milky Way Galaxy. Near-IR JHK (2MASS) photometry has been used for getting a homogeneous Catalog of 263 open clusters' parameters,…

Astrophysics of Galaxies · Physics 2014-06-03 A. L. Tadross

Automated search for star clusters in J,H,K_s data from 2MASS catalog has been performed using the method developed by Koposov et. al (2008). We have found and verified 153 new clusters in the interval of the galactic latitude -24 < b < 24…

Astrophysics of Galaxies · Physics 2010-11-26 Elena Glushkova , Sergey Koposov , Ivan Zolotukhin , Yuri Beletsky , Andrey Vlasov , Svetlana Leonova

Based on published data, we have compiled a catalogue of fundamental astrophysical parameters for 593 open clusters of the Galaxy. In particular, the catalogue provides the Galactic orbital elements for 500 clusters, the masses, central…

Astrophysics of Galaxies · Physics 2012-12-10 M. L. Gozha , T. V. Borkova , V. A. Marsakov

The astrophysical parameters of four unstudied open star cluster candidates - Harvard 9, Ivanov 2, Ivanov 7, and Ivanov 9 - have been estimated for the first time using the PPMXL database. The stellar density distributions and…

Astrophysics of Galaxies · Physics 2015-06-19 A. L. Tadross , R. Bendary

The fundamentals of estimating essential stellar parameters of an open cluster-NGC 2360 and globular clusters-NGC 5272 are presented extensively in this work. Here, the evaluation of stellar parameters, by manually fitting the appropriate…

Astrophysics of Galaxies · Physics 2022-11-09 Kanwar Preet Kaur , Pankaj S. Joshi

Despite progress in the theoretical knowledge of open cluster remnants and the growing search for observational identifications in recent years, open questions still remain. The methods used to analyze open cluster remnants and criteria to…

Astrophysics · Physics 2009-11-13 D. B Pavani , E. Bica

Aims. To produce an homogeneous catalog of astrophysical parameters of 239 resolved star clusters located in the Small and Large Magellanic Clouds, observed in the Washington photometric system. Methods. The cluster sample was processed…

Astrophysics of Galaxies · Physics 2017-06-21 Gabriel I. Perren , Andrés E. Piatti , Rubén A. Vázquez

Open clusters, which have age, abundance, and extinction information from studies of main-sequence turn off stars, are the ideal location in which to determine the mass-luminosity-radius relation for low-mass stars. We have undertaken a…

Astrophysics · Physics 2009-11-10 Leslie Hebb , Rosemary F. G. Wyse , Gerard Gilmore

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

The optical UBVRI photometric analysis has been established using SLOAN DIGITAL SKY SURVEY (SDSS database) in order to estimate the astrophysical parameters of poorly studied open star cluster IC 2156. The results of the present study are…

Astrophysics of Galaxies · Physics 2017-01-18 A. L. Tadross , Y. H. M. Hendy

We present a simple approach for obtaining robust values of astrophysical parameters from the observed colour-magnitude diagrams (CMDs) of star clusters. The basic inputs are the Hess diagram built with the photometric measurements of a…

Solar and Stellar Astrophysics · Physics 2015-05-20 C. Bonatto , F. Campos , S. O. Kepler , E. Bica

Aims: On the basis of the PPMXL star catalogue we performed a survey of star clusters in the second quadrant of the Milky Way. Methods: From the PPMXL catalogue of positions and proper motions we took the subset of stars with near-infrared…

Astrophysics of Galaxies · Physics 2015-06-05 N. V. Kharchenko , A. E. Piskunov , E. Schilbach , S. Röser , R. -D. Scholz

In this contribution I will discuss fundamental stellar parameters as determined from young star clusters; specifically those with ages less than or approximately equal to that of the Pleiades. I will focus primarily on the use of stellar…

Solar and Stellar Astrophysics · Physics 2016-12-07 Cameron P. M. Bell

Open clusters belonging to star-forming complexes are the leftovers from the initial stellar generations. The study of these young systems provides constraints to models of star formation and evolution as well as to the properties of the…

Solar and Stellar Astrophysics · Physics 2015-05-19 F. F. S. Maia , W. J. B. Corradi , J. F. C. Santos

This work presents the first large-scale photometric variability survey of the intermediate age (~200 Myr) open cluster M11. Thirteen nights of data over two observing seasons were analyzed (using crowded field and ensemble photometry…

Astrophysics · Physics 2008-11-26 Jonathan R. Hargis , Eric L. Sandquist , David H. Bradstreet

A photometric and astrometric study of the two open star clusters Gulliver 18 and Gulliver 58 was carried out for the first time using the early third data release of the Gaia space observatory (Gaia-EDR3). By studying the proper motions,…

Astrophysics of Galaxies · Physics 2022-10-12 Ashraf Tadross , Eslam Elhosseiny

Open clusters are a useful tool when investigating several topics connected with stellar evolution; for example the age or distance can be more accurately determined than for field stars. However, one important parameter, the metallicity,…

Solar and Stellar Astrophysics · Physics 2015-06-16 M. Netopil , E. Paunzen