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We present the first CCD photometric observations of open cluster NGC 744, as part of the 50 BiN Open Cluster Survey. Th......

A photometric study in the uvbyβ system of a 20° × 20° field in direction of the Cas OB6 and Per OB1 ass......

We extend Schwarzschild's dynamical modelling method to model absorption line strength data as well as the more usua......

We present the results of the Chandra high-resolution observation of the Seyfert 2 galaxy NGC 7590. This object was repo......