Cosmology Seminar Announcement Prof. Taotao Fang Lawrence Berkeley Labs " Probing the Warm-Hot Intergalactic Medium " Date: Thursday, March 31, 2005 416 Phy/Geo Time: 12:10 pm. Abstract: Cosmological simulations reveal the cosmic web structure of the universe, where moderately overdense filaments connect collapsed regions such as groups and clusters of galaxies. These filaments, named "Warm-Hot Intergalactic Medium", or "WHIM", account for a large amount of the so-called "missing baryons" and produce detectable signals in UV and X-ray bands. I will discuss detailed imaging and spectroscopy studies of this WHIM gas. I will also talk about our recent progress in studying the local (z ~ 0) hot gas and determining whether it's part of the WHIM in our Local Group or hot interstellar medium.

E-Mail: fangt@astron.berkeley.edu
Web Page: http://www.astron.berkeley.edu/~fangt/