Peter Jensen
It is generally believed that active galaxies are
transformed into quiescent galaxies (possibly via an intermediate
star-burst episode) in the cluster environment. While many mechanisms
for galaxy evolution in the cluster environment have been proposed,
the exact mechanism is still unknown. A possible candidate might be
the injection of energy into galaxies from cluster mergers. Cluster
mergers are the most energetic phenomena in the universe since the Big
Bang, releasing some 10^64 erg of gravitational binding energy. To
test this hypothesis, I am measuring and comparing galaxy properties
between relaxed clusters and recently-merged clusters using X-ray
“cold fronts” as a proxy for recent-merger activity.
| Phone | +61 3 9214 8679 | |
| Fax | +61 3 9214 8797 | |
| Office | AR 308d |