Greg Bryan
Address:
Princeton University Observatory
107 Peyton Hall
Princeton, NJ 08544
(609) 258-3702 (office)
(609) 818-1003 (home)
gbryan@astro.princeton.edu
A picture of me.
Research Interests:
X-ray Clusters
This was my thesis topic (for a copy, see below), and remains one of
my primary areas of research. I have developed a novel adaptive
Eulerian hydrodynamics scheme to examine clusters with high
resolution, and am a co-investigator on a NASA ATP grant with Jack
Burns, Anatoly Klypin, Chris Loken and Michael Norman to use this to
simulate a large sample of clusters in a variety of cosmologies to
investigate both their structure and their applicability as a
cosmological probe. I also have some interesting images from various
simulations, including
some from my thesis, and
others
from a large cold+hot dark matter model that Mike and I did a while
ago.
Lyman-alpha forest
There has recently been a great leap in our understanding of the
Lyman-alpha forest based on recent results from simulations. I'm
working with Peter Anninos, Marie Machacek, Michael Norman and Yu
Zhang to obtain cosmological constraints with this new tool. A first
step is to better understand both the structure of the clouds and the
effects of numerical limitations, an effort which appears to have just
produced some very interesting results.
First structure formation
With Tom Abel and others, we have begun to look at the structure and
evolution of the first objects that are predicted to form in cold
dark matter like universes, largely 10^5 or 10^6 solar mass objects at
redshifts of 10-40.
Asymptotic giant branch (AGB) stars
I did some work in this area with Sun Kwok and Kevin Volk some time
back, and although I have not done anything recently, I do hope to
return to it at some time.
Other odds and ends:
