Volume 407, Number 3, September I 2003
|Page(s)||925 - 934|
|Section||Galactic structure, stellar clusters, and populations|
|Published online||17 November 2003|
Institut d'Astrophysique, Université de Liège, Allée du 6 Août, Bât. B5c, 4000 Liège (Sart Tilman), Belgium
2 School of Physics & Astronomy, University of Birmingham, Edgbaston Birmingham B15 2TT, UK
Corresponding author: G. Rauw, firstname.lastname@example.org
Accepted: 16 June 2003
We report the detection of a number of X-ray sources associated with the very young open cluster NGC 6383. About two thirds of these objects are correlated with a rather faint optical source and all but one have at least one infrared counterpart within a correlation radius of 8 arcsec. Although NGC 6383 is not associated with a prominent star forming region, the overall properties of many of the X-ray sources suggest that they may be candidates for low-mass pre-main sequence stars. The number of X-ray sources increases towards the cluster center suggesting that there exists a close relation between the massive O-star binary system HD 159 176 in the cluster core and the population of X-ray bright low-mass objects in NGC 6383.
Key words: stars: pre-main sequence / X-rays: stars / open clusters and associations: individual: NGC 6383 / stars: early-type
© ESO, 2003
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