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We present an X-ray analysis of a 4 Gyr old open cluster, M67, using archival XMM–Newton data. The aim of this study was to find new X-ray members of M67, and to use the updated member list for studying X-ray variability, and derive the X-ray luminosity functions (XLFs) of different stellar types and compare them with other star clusters of similar age. We report the detection of X-ray emission fr...

Study of X-ray emission from the old open cluster, M67