期刊
ASTRONOMY & ASTROPHYSICS
卷 407, 期 3, 页码 925-U15出版社
EDP SCIENCES S A
DOI: 10.1051/0004-6361:20030910
关键词
stars : pre-main sequence; X-rays : stars; open clusters and associations : individual : NGC 6383; stars : early-type
We report the detection of a number of X-ray sources associated with the very young open cluster NGC6383. 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 NGC6383 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 HD159176 in the cluster core and the population of X-ray bright low-mass objects in NGC 6383.
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