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Accurate determinations of stellar parameters and distances for large complete samples of stars are keys for conducting detailed studies of the formation and evolution of our Galaxy. Here we present stellar atmospheric parameters ($T_{\rm…

The Galactic globular cluster system is incomplete, especially in the low latitude regions of the Galactic bulge and disk. We report the physical characterization of twelve star clusters in the Milky Way, most of which are explored here for…

In this study, we carried out CCD UBV photometry of eight open clusters, ASCC 115, Collinder 421, NGC 6793, NGC 7031, NGC 7039, NGC 7086, Roslund 1, Stock 21, and determined their reddening, metallicity, distance, age, and mass functions.…

Astrophysics of Galaxies · Physics 2019-09-25 T. Yontan , S. Bilir , Z. F. Bostanci , T. Ak , S. Ak , T. Guver , E. Paunzen , H. Urgup , M. Celebi , B. A. Akti , S. Gokmen

In this study, we considered the optical wavelength of Gaia DR3 to analyze poorly studied three newly open star clusters namely OCSN 203, OCSN 213, and OCSN 244 clusters with ASTECA code. Here, we identified candidates of 227, 200, and 551…

Solar and Stellar Astrophysics · Physics 2024-12-12 W. H. Elsanhoury , Haroon A. A , E. A. Elkholy , D. C. Çınar

Spectra of galaxies contain an enormous amount of information about the relative mixture of ages and metallicities of constituent stars. We present a comprehensive study designed to extract the maximum information from spectra of data…

Astrophysics · Physics 2008-11-26 Marsha J. Wolf , Niv Drory , Karl Gebhardt , Gary J. Hill

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…

Several studies have been presented in the last few years applying some kind of automatic processing of data to estimate the fundamental parameters of open clusters. These parameters are later on employed in larger scale analyses, for…

Astrophysics of Galaxies · Physics 2022-07-27 G. I. Perren , M. S. Pera , H. D. Navone , R. A. Vázquez

Fundamental astrophysical parameters have been derived for 20 open clusters (O\!Cs) using CCD~$U\!BV\!(RI)_C$ photometric data observed with the 84~cm telescope at the San Pedro M\'artir National Astronomical Observatory, M\'exico. The…

Astrophysics of Galaxies · Physics 2015-06-22 Inci Akkaya Oralhan , Yüksel Karataş , William J. Schuster , Raúl Michel , Carlos Chavarría

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

We have initiated a long-term project, the BOAO photometric survey of open clusters, to enlarge our understanding of galactic structure using UBVI CCD photometry of open clusters which have been little studied before. This is the second…

Astrophysics · Physics 2009-11-07 H. B. Ann , S. H. Lee , H. Sung , M. G. Lee , S. -L. Kim , M. -Y. Chun , Y. -B. Jeon , B. -G. Park , I. -S. Yuk

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

In this paper, we make use of data collected for open cluster members by high-resolution spectroscopic surveys and programmes (i.e., APOGEE, Gaia-ESO, GALAH, OCCASO, and SPA). These data have been homogenised and then analysed as a whole.…

Astrophysics of Galaxies · Physics 2022-02-02 Lorenzo Spina , Laura Magrini , Katia Cunha

We present here the fundamental parameters of ten open star clusters, nominated from Kronberger et al. (2006) who presented some new discovered stellar groups on the basis of 2MASS photometry and DSS visual images. Star counts and…

Astrophysics of Galaxies · Physics 2015-05-28 A. L. Tadross , R. El-Bendary , A. Osman , N. Ismail , A. Bakry

We have obtained high-res, high S/N ratio CCD echelle spectra of 10 bright red giants in 3 GCs (47Tuc, NGC6752 and NGC6397) roughly spanning the range of metallicities of the galactic GC system; they reveal no evidence of star to star…

Astrophysics · Physics 2009-07-28 E. Carretta , R. G. Gratton

CCD photometry on the intermediate-band vbyCaHbeta system is presented for the metal-rich, old open cluster, NGC 6791. Preliminary analysis led to [Fe/H] above +0.4 with an anomalously high reddening and an age below 5 Gyr. A revised…

Astrophysics · Physics 2008-11-26 B. J. Anthony-Twarog , B. A. Twarog , L. Mayer

The stellar atmospheric parameters and physical properties of stars in the Kepler Input Catalog (KIC) are of great significance for the study of exoplanets, stellar activity, and asteroseismology. However, despite extensive effort over the…

Solar and Stellar Astrophysics · Physics 2024-12-30 Bowen Zhang , Yang Huang , Timothy C. Beers , Kai Xiao , Jifeng Liu , Lei Jia , Henggeng Han , Zhirui Li , Chuanjie Zheng , Yongkang Sun , Ruifeng Shi , Hongrui Gu

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

We present a detailed chemical abundance study of evolved stars in 10 open clusters based on Hydra multi-object echelle spectra obtained with the WIYN 3.5m telescope. From an analysis of both equivalent widths and spectrum synthesis,…

Astrophysics of Galaxies · Physics 2015-05-28 H. R. Jacobson , C. A. Pilachowski , E. D. Friel

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

Studies on star clusters with the same age and initial chemical composition have gained momentum in recent years with the use of \textit{Gaia}. In addition, the discovery of new clusters with Gaia has increased the number of open clusters…

Solar and Stellar Astrophysics · Physics 2025-02-07 İnci Akkaya Oralhan , Cenk Kayhan , Özgün Arslan