Zobrazeno 1 - 10
of 75
pro vyhledávání: '"KARATAŞ, Yüksel"'
We derive astrophysical parameters of the open cluster NGC 1513 by means of colour indices built with new $CCD\,UBV(RI)_{KC}$ photometry. Based on early-type members, the mean foreground reddening and total to selective extinction ratio are E(B-V)=0.
Externí odkaz:
http://arxiv.org/abs/2405.09918
Autor:
Karataş, Yüksel, Çakmak, Hikmet, Oralhan, İnci Akkaya, Bonatto, Charles, Michel, Raúl, Netopil, Martin
We present a detailed study of NGC 6791, NGC 6811, NGC 6819 and NGC 6866, the four open clusters that are located in the Kepler prime field. We use new CCD UBV(RI)KC photometry, which was combined with Gaia EDR3 photometric/astrometric data, to deriv
Externí odkaz:
http://arxiv.org/abs/2302.09851
Autor:
Çakmak, Hikmet, Karataş, Yüksel
By utilising Gaia EDR3 photometric / astrometric data, we studied the dynamical evolution from the obtained astrophysical, structural and dynamical parameters of the open clusters (OCs), Berkeley 10 (Be 10), Berkeley 81 (Be 81), Berkeley 89 (Be 89),
Externí odkaz:
http://arxiv.org/abs/2204.07745
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 a further
Externí odkaz:
http://arxiv.org/abs/2110.11893
We determined astrophysical and dynamical parameters of the open clusters (OCs) NGC 2587, Collinder 268 (Col 268), Melotte 72 (Mel 72), and Pismis 7 from Gaia DR2 photometric/astrometric data and a new technique, fitCMD. fitCMD provides (Z, Age(Gyr))
Externí odkaz:
http://arxiv.org/abs/2108.11617
We derive astrophysical and structural parameters of open clusters NGC 1245 and NGC 2099 from 2MASS JHKs and Gaia DR2 photometric / astrometric data bases. Their likely members have been determined from Gaia DR2 proper motion data. Our E(B-V) values
Externí odkaz:
http://arxiv.org/abs/2012.15587
Autor:
Oralhan, İnci Akkaya, Michel, Raúl, Karslı, Yonca, Çakmak, Hikmet, Sung, Hwankyung, Karataş, Yüksel
The CCD UBV(RI)KC photometry of the poorly studied open clusters Juchert 9 (Juc 9) and Berkeley 97 (Be 97), which are observed with the 0.84 m telescope at the San Pedro M\'artir National Observatory, M\'exico has been analysed. For the likely cluste
Externí odkaz:
http://arxiv.org/abs/1911.12980
The poorly studied Berkeley 8 (Be8) open cluster is analysed from CCD UBVRI photometric data taken with the 0.90 m telescope at the Sierra Nevada Observatory. The Z = +0.008 PARSEC isochrone gave us a reddening of E(B-V) = 0.69 +- 0.03, a distance of
Externí odkaz:
http://arxiv.org/abs/1908.05479
Autor:
Oralhan, Inci Akkaya, Michel, Raul, Schuster, William J., Karatas, Yüksel, Karsli, Yonca, Chavarria, Carlos
Publikováno v:
Journal of Astrophysics and Astronomy, 2019, SCI-Expanded
The open clusters NGC 2323 and NGC 2539 have been analysed using CCD UBV(RI)KC photometric data, observed at the San Pedro Martir Observatory. Cluster memberships have been determined with the proper motion and parallax measures from the GaiaDR2 astr
Externí odkaz:
http://arxiv.org/abs/1906.05600
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