Address:
Department of Astronomy, Columbia University
1328 Pupin Physics Lab, MC 5246
550 West 120th Street
New York, NY 10027
phone: 1-212-854-6837
fax: 1-212-854-8121
email: gbryan //at\\ astro.columbia.edu
I am an Assistant Professor in the Astronomy Department at Columbia
University
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. I now returned to this subject with simulations that include the effects of radiative cooling, star formation and feedback (both energetic and in terms of metals).
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. More details are available.
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.
Curriculum Vitae (including links to publications)
Thesis page: The Numerical Simulation of X-ray Clusters
PBS test frames for Tom Lucas (See also John Shalf's page )