Physics
Scientific paper
Mar 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995msngr..79...26g&link_type=abstract
The Messenger, vol. 79, p. 26-29
Physics
5
Globular Clusters: Photometry, Globular Clusters: Infrared Photometry
Scientific paper
The bulge region of our Galaxy contains a number of globular clusters whose study can provide important information about the history of the Galaxy formation conditions after the initial collapse of the spheroid. The age, dynamical and chemical conditions of the bulge are the crucial parameters to be investigated. Unfortunately, they are hardly observable in the optical wavelength due to the heavy extinction in the direction of the Galactic plane. For these reasons we have started a systematic study of a sample of metalrich clusters in the infrared using IRAC2 withe the new NlCMOS3 detector 256 x 256 pixels, mounted at the MPIIESO 2.2- m telescope at La Silla (Chile). Here, we present the results of combined visual and near-infrared photometry in one of the most metal-rich globular cluster NGC 6553 ([FeIH] - -0.2). The optical counterparts come from Ortolani, Barbuy and Bica (1990).
Barbuy Batriz
Bica Eduardo
Guarnieri Maria Donata
Moneti Andrea
Montegriffo Paolo
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