Astronomy and Astrophysics – Astronomy
Scientific paper
May 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009rmxac..35q.302p&link_type=abstract
XII Latin American IAU Regional Meeting (Eds. G. Magris, G. Bruzual, & L. Carigi) Revista Mexicana de Astronomía y Astrofísica (
Astronomy and Astrophysics
Astronomy
Scientific paper
We have derived fundamental parameters for the previously unstudied concentrated galactic open clusters Berkeley 77, NGC 2587, BH 58 and ESO324-SC15 by means of integrated spectroscopy in the range 3800-6800Å. The cluster integrated spectra are compared with those of solar-metallicity template spectra of Galactic open clusters with known parameters. The spectra were obtained at CASLEO (San Juan, Argentina) with a resolution of 14Å. We performed simultaneous estimates of age and foreground interstellar reddening by comparing the continuum distribution and line strengths of the cluster spectra with those of the template spectra. Berkeley 77 is found to be an old cluster of 3-4 Gyr, while the remaining three clusters are between 400 and 1000 Myr old. The derived foreground reddening values range from E(B - V) = 0.0 in NGC 2587 and ESO324-SC15 to approximately 0.3 in Berkeley 77.
Ahumada Andrea V.
Bica Eduardo
Claria Juan J.
Palma Tali
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