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The X-ray spectrum of the cooling-flow quasar H1821+643 : A massive black hole feeding off the intracluster medium
Christopher S. Reynolds, Anne M. Lohfink, Arif Babul +4
We present a deep Suzaku observation of H1821+643, an extremely rare example of a powerful quasar hosted by the central massive galaxy of a rich cooling-core cluster of galaxies. I…
Cold gas in group-dominant elliptical galaxies
E. O'Sullivan, F. Combes, S. Hamer +3
We present IRAM 30m telescope observations of the CO(1-0) and (2-1) lines in a sample of 11 group-dominant elliptical galaxies selected from the CLoGS nearby groups sample. Our obs…
LoCuSS: The Near-Infrared Luminosity and Weak-Lensing Mass Scaling Relation of Galaxy Clusters
Sarah L. Mulroy, Graham P. Smith, Chris P. Haines +7
We present the first scaling relation between weak-lensing galaxy cluster mass, , and near-infrared luminosity, . Our results are based on 17 clusters observed with wi…
The outer halo globular cluster system of M31 - II. Kinematics
J. Veljanoski, A. D. Mackey, A. M. N. Ferguson +13
We present a detailed kinematic analysis of the outer halo globular cluster (GC) system of M31. Our basis for this is a set of new spectroscopic observations for 78 clusters lying…
The PAndAS Field of Streams: stellar structures in the Milky Way halo toward Andromeda and Triangulum
Nicolas F. Martin, Rodrigo A. Ibata, R. Michael Rich +16
We reveal the highly structured nature of the Milky Way stellar halo within the footprint of the PAndAS photometric survey from blue main sequence and main sequence turn-off stars.…
Hubble Space Telescope/Advanced Camera for Surveys Confirmation of the Dark Substructure in A520
M. James Jee, Henk Hoekstra, Andisheh Mahdavi +1
We present the results from a weak gravitational lensing study of the merging cluster A520 based on the analysis of Hubble Space Telescope/Advanced Camera for Surveys (ACS) data. T…