Spatial kinematics of Brightest Cluster Galaxies and their close companions from Integral Field Unit spectroscopy
We present Integral Field Unit (IFU) spectroscopy of four brightest cluster galaxies (BCGs) at z ~ 0.1. Three of the BCGs have close companions within a projected radius of 20 kpc and one has no companion within that radius.We calculate the dynamical masses of the BCGs and their companions to be 1.4 × 1011 < Mdyn(M⊙) < 1.5 × 1012. We estimate the probability that the companions of the BCGs are bound using the observed masses and velocity offsets. We show that the lowest mass companion (1:4) is...[Show more]
|Collections||ANU Research Publications|
|Source:||Monthly Notices of the Royal Astronomical Society: Letters|
|01_Brough_Spatial_kinematics_of_2011.pdf||555.94 kB||Adobe PDF|
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