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An HST/WFPC2 survey of bright young clusters in M31. IV. Ages and mass estimates
S. Perina, J. G. Cohen, P. Barmby +11
{Aims.} We present the main results of an imaging survey of possible young massive clusters (YMC) in M31 performed with the Wide Field and Planetary Camera2 (WFPC2) on the Hubble S…
An HST/WFPC2 Survey of Bright Young Clusters in M31 III. Structural Parameters
P. Barmby, S. Perina, M. Bellazzini +6
Surface brightness profiles for 23 M31 star clusters were measured using images from the Wide Field Planetary Camera 2 on the Hubble Space Telescope, and fit to two types of models…
An HST/WFPC Survey of Bright Young Clusters in M31. II. Photometry of Less Luminous Clusters in the Fields
P. W. Hodge, O. K. Krienke, M. Bellazzini +5
We report on the properties of 89 low mass star clusters located in the vicinity of luminous young clusters (blue globulars) in the disk of M31. 82 of the clusters are newly detect…
Mass-to-Light Ratios for M31 Globular Clusters: Age-Dating and a Surprising Metallicity Trend
Jay Strader, Graeme Smith, Soeren Larsen +2
We have obtained velocity dispersions from Keck high-resolution integrated spectroscopy of ten M31 globular clusters (GCs), including three candidate intermediate-age GCs. We show…
Probing the 2-D kinematic structure of early-type galaxies out to 3 effective radii
Robert N. Proctor, Duncan A. Forbes, Aaron J. Romanowsky +5
We detail an innovative new technique for measuring the 2-D velocity moments (rotation velocity, velocity dispersion and Gauss-Hermite coefficients h and h) of the stellar…
Evidence for the disky origin of luminous Virgo dwarf ellipticals from the kinematics of their globular cluster systems
Michael A. Beasley, A. Javier Cenarro, Jay Strader +1
We report evidence for dynamically significant rotation in the globular cluster systems of two luminous Virgo dwarf ellipticals, VCC1261 and VCC1528. Including previous results for…