A G 1 – like globular cluster in NGC 1023

Abstract

The structure of a very bright (MV = −10.9) globular cluster in NGC 1023 is analyzed on two sets of images taken with the Hubble Space Telescope. From careful modeling of King profile fits to the cluster image, a core radius of rc = 0.55 ± 0.1 pc, effective radius Re = 3.7± 0.3 pc and a central surface brightness of μ0(V ) = 12.9± 0.5 mag arcsec−2 are… (More)

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