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Early-type galaxies in the near-infrared: 1.5-2.4\mum spectroscopy
M. Cesetti, V. D. Ivanov, L. Morelli +6
Near-infrared (hereafter NIR) data may provide complementary information to the traditional optical population synthesis analysis of unresolved stellar populations because the spec…
Obscured clusters. II. GLIMPSE-C02 - A new metal rich globular cluster in the Milky Way
R. Kurtev, V. D. Ivanov, J. Borissova +1
The estimated total number of Milky Way globulars is 160+-20. The question of whether there are any more undiscovered globular clusters in the Milky Way is particularly relevant wi…
Luminosity-Metallicity Relation for dIrr Galaxies in the Near-Infrared
Ivo Saviane, Valentin D. Ivanov, Enrico V. Held +4
(abridged) The present work is a first step to collect homogeneous abundances and near-infrared (NIR) luminosities for a sample of dwarf irregular (dIrr) galaxies, located in nearb…
The young Galactic star cluster [DBS2003]179
J. Borissova, V. D. Ivanov, M. M. Hanson +4
Recent near- and mid-infrared surveys have brought evidence that the Milky Way continues to form massive clusters. We carry out a program to determine the basic physical properties…
Optical monitoring of the z=4.40 quasar Q 2203+292
E. P. Ovcharov, P. L. Nedialkov, A. T. Valcheva +5
We report Cousins R-band monitoring of the high-redshift (z=4.40) radio quiet quasar Q 2203+292 from May 1999 to October 2007. The quasar shows maximum peak-to-peak light curve amp…