NGC 6603 - A young rich open cluster towards the bulge

Details NGC 6603 - A young rich open cluster towards the bulge NGC 6603 - A young rich open cluster towards the bulge

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...270..117b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 270, no. 1-2, p. 117-121.

Astronomy and Astrophysics

Astrophysics

11

Color-Magnitude Diagram, Galactic Bulge, Open Clusters, Early Stars, Star Formation

Scientific paper

We present B, V color magnitude diagrams of the rich open cluster NGC 6603. A foreground reddening of E(B-V)(f) = 0.50 and an internal one of E(B-V)(i) = 0.29 were derived with the additional help of integrated spectra. The resulting age is 200 +/- 100 Myr, and the distance is about 3.6 kpc. The surrounding field is also studied, appearing to be part of a star cloud which contains age components in the range 200 to 600 Myr or more. The cluster appears to be spatially associated with the star cloud, being part of its youngest component. The cluster and the star cloud location in the inner disk are in agreement with other studies showing an enhancement of star formation in this region.

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