The peculiar colour-magnitude diagrams of the metal-rich globular cluster NGC 6553.

Details The peculiar colour-magnitude diagrams of the metal-rich globular cluster NGC 6553. The peculiar colour-magnitude diagrams of the metal-rich globular cluster NGC 6553.

Dec 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989msngr..58...42b&link_type=abstract

The Messenger, vol. 58, p. 42-44

Physics

6

Globular Clusters: C-M Diagrams, Globular Clusters: Ages, Globular Clusters: Reddening

Scientific paper

NGC 6553 = GLC 88 (R.A. = 18^h 05^m ll^s, DEC. = -25° 55'1; 1950.0) is a metal-rich globular cluster of low Galactic latitude (l = 5°.253, b = -3°.029) at a heliocentric distance of about 5.7 kpc (Webbink, 1985), in the direction of the Galactic centre. It shows the following interesting properties: (1) it is one of the most metal- rich galactic globular clusters (Morgan, 1959; van den Bergh, 1967; Bica and Pastoriza, 1983; Zinn and West, 1984); (2) it is a good example of an inner bulge globular cluster; (3) it shows a core with relatively dispersed, and therefore resolvable stars.

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