X-ray wakes in clusters of galaxies
with UK astronomers Mike Merrifield, Irini Sakelliou, Nick Drake,
Ponman, David Acreman, Stevens, I am searching for X-ray wakes in
clusters of galaxies. We have focused on the z=0.045 cluster
Abell 160 for a study using first ROSAT (Drake
et al 2000
,), and then Chandra X-ray images (in
preparation). The goal was to find numerous wakes in one
cluster and constrain the kinematics by taking the wake/tail direction
as an indicator of the direction of motion.
The wake phenomenon is poorly understood and a statistical sample of
clusters with both X-ray and optical imaging is badly
needed. To this end, I have been
CCD data of promising wake clusters (selected by Tx and Lx and tailed
sources) at MDM. The optical imaging will allow a comparison of
wake strength with galaxy luminosity, morphology, etc.
This work has included a preliminary
archival search for wake candidates in the ROSAT archive. Here is an
of a cluster with interesting X-ray and optical coincidences, Abell
Squares indicate cluster members with redshifts.
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