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The PN.S Elliptical Galaxy Survey: a standard LCDM halo around NGC 4374?
N. R. Napolitano, A. J. Romanowsky, M. Capaccioli +10
As part of our current programme to test LCDM predictions for dark matter (DM) haloes using extended kinematical observations of early-type galaxies, we present a dynamical analysi…
The dynamically hot stellar halo around NGC 3311: a small cluster-dominated central galaxy
G. Ventimiglia, O. Gerhard, M. Arnaboldi +1
An important open question is the relation between intracluster light and the halos of central galaxies in galaxy clusters. Here we report results from an on going project with the…
Counter-dispersed slitless-spectroscopy technique: planetary nebula velocities in the halo of NGC 1399
Emily McNeil, Magda Arnaboldi, Ken Freeman +3
Using a counter-dispersed slitless spectroscopy technique, we detect and measure the line-of-sight velocities of 187 planetary nebulae (PNe) around one of the nearest cD galaxies,…
Distinct core and halo stellar populations and the formation history of the bright Coma cluster early-type galaxy NGC 4889
Lodovico Coccato, Ortwin Gerhard, Magda Arnaboldi
We study the stellar population far into the halo of one of the two brightest galaxies in the Coma cluster, NGC 4889, based on deep medium resolution spectroscopy with FOCAS at the…
Kinematics and line strength indices in the halos of the Coma Brightest Cluster Galaxies NGC 4874 and NGC 4889
L. Coccato, M. Arnaboldi, O. Gerhard +3
We investigate the stellar kinematics and line strength indices in the outer halos of brightest cluster galaxies (BCGs) in the Coma cluster to obtain the outer halo V_rot and sigma…