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astro-ph2002
Galaxy Evolution: Internally or Externally Driven?
M. L. Balogh, R. G. Bower
The globally-averaged star formation rate in the Universe has been steadily declining since at least z~1. This may be due either to very local processes operating within the averag…
astro-ph2002
New Tests of the Cluster Entropy Floor Hypothesis
Ian G. McCarthy, Arif Babul, Michael L. Balogh +1
Recent efforts to account for the observed X-ray luminosity - temperature relation of galaxy clusters has led to suggestions that the ICM has an apparent ``entropy floor'' at or ab…