An XMM-Newton observation of the very young open cluster NGC 6383
Abstract
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.
Based on observations with XMM-Newton, an ESA science mission with instruments and contributions directly funded by ESA member states and the USA (NASA). Table 1 is only available in electronic form at http://www.edpsciences.org- Publication:
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Astronomy and Astrophysics
- Pub Date:
- September 2003
- DOI:
- 10.1051/0004-6361:20030910
- Bibcode:
- 2003A&A...407..925R
- Keywords:
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- stars: pre-main sequence;
- X-rays: stars;
- open clusters and associations: individual: NGC 6383;
- stars: early-type