Calendar
2009
November-December
Fri, Dec 18 |
Video Conference of Physics Colloquium at Texas A&M University Latest Results from the Cryogenic Dark Matter Search Experiment |
Thu, Dec 17 |
Webcast of ACKS Seminar at SLAC Recent Results from CDMS |
Mon, Nov 16 |
Theoretical Astrophysics Seminar Cosmological hydrogen recombination: the effect of high-n states and forbidden transitions [abstract] |
Fri, Nov 13 |
Informal TCC Seminar Relative motion of dark matter and baryonic fluids and non-linear effects in density evolution [abstract] |
September-October
Thu-Fri, |
TEXAS COSMOLOGY NETWORK MEETING 2009 Two full days of talks, presentations, and discussion on the enterprise of cosmology from the perspective of Texas researchers. |
Wed, Oct 28 |
Antoinette de Vaucouleurs Memorial Lecture Cosmic Microwave Background, Clusters of Galaxies and Cosmology [abstract] |
Tue, Oct 27 |
Antoinette de Vaucouleurs Public Lecture The Richness and Beauty of the Physics of Cosmological Recombination [abstract] |
Tue, Oct 27 |
Theory Group Seminar Floating black holes in warped higher-dimensional bulk [abstract] Takahiro Tanaka, Kyoto University, Yukawa Institute for Theoretical Physics |
Mon, Oct 26 |
Theoretical Astrophysics Seminar (2nd half) Vortices (and the Angular Momentum Problem) in Bose-Einstein-Condensed Cold Dark Matter Halos [abstract] |
Mon, Oct 26 |
Theoretical Astrophysics Seminar (1st half) Is Cold Dark Matter a Bose-Einstein Condensate? [abstract] |
Thu, Oct 22 |
TCC/Extragalactic Seminar The Spitzer Deep, Wide-Field Survey [abstract] |
Thu, Oct 1 |
Public Lecture: Thompson Conference Center The Shape of Space [abstract] |
Mon, Sep 21 |
TCC/Astrophysics Theory Seminar A New Perspective on Galaxy Clustering as a Cosmological Probe: General Relativistic Effects [abstract] |
July-August
Mon, Aug 24 |
PhD DEFENSE Gravitational Dynamics of Halo Formation in a Collisional versus Collisionless Cold Dark Matter Universe [abstract] |
Tue, Aug 25 |
PhD DEFENSE Primordial non-Gaussianity from multi-field inflation re-examined [abstract] |
May-June
Tue, May 26 |
THEORY GROUP SPECIAL SEMINAR Dark Matter Signals from Cascade Annihilations |
Tue, May 19 |
THEORY GROUP SPECIAL SEMINAR (Personal) Summary of the Sovay Workshop on 'Cosmological Frontiers in Fundamental Physics' |
March-April
Fri, Apr 24 |
THEORY GROUP SEMINAR Dark Stars |
Thu, Apr 23 |
INFORMAL TCC SEMINAR Covariance Matrix of the Matter Power Spectrum [abstract] |
Tue, Apr 21 |
TEXAS COSMOLOGY CENTER SEMINAR Do Halo Mergers Trigger Quasars? [abstract] |
Tues, Apr 21 |
THEORY GROUP SEMINAR Sommerfeld-Enhancing the Dark Matter Annihilation Rate |
Thurs, Apr 2 |
WEINBERG THEORY GROUP SEMINAR Reevaluating the WIMP Miracle [abstract] |
Wed, Mar 25 |
PHYSICS COLLOQUIUM Cosmology as Science? From Inflation to Eternity |
Tues, Mar 24 |
TEXAS COSMOLOGY CENTER COLLOQUIUM Formation of Primordial Stars and Black Holes [abstract] The first stars are thought to be the first sources of light, and also the first sources of heavy elements. The first stars terminate the cosmic Dark Ages, set the scene for later galaxy formation, and might also seed the formation of massive blackholes in the early universe. I present the results from ultra-high resolution simulations of the formation of the first stars within the framework of the standard cosmology. I show that tiny density fluctuations left over from the Big Bang drive the formation of primordial protostars when the age of the universe was less than a few million years. Our detailed calculations of proto-stellar evolution suggest that the first stars are massive. Under some reasonable assumptions, some stars grow to be more massive than 300 solarmasses, to collapse to black holes. I use another set of cosmological simulations to answer to an important question, "Where are the first stars now?" The simulations follow the formation of a Milky-Way size galaxy with an unprecedented resolution, so that the old stellar remnants can be directly located within the galaxy's halo. I propose a model that explains the apparent lack of pair-instability signature in metal-poor halo stars. Finally, I will discuss prospects for future observations of the first stars and their signatures exploiting ground-based and space-borne telescopes. Naoki Yoshida, IPMU, University of Tokyo |
M-F, Mar 16-20 |
SPRING BREAK No seminars or colloquia scheduled. |
Mon, Mar 9 |
TEXAS COSMOLOGY CENTER COLLOQUIUM Testing Gravity with Gravitational Lensing and Dynamics [abstract] |
January-February
Mon, Feb 23 |
TEXAS COSMOLOGY CENTER SEMINAR Primordial Non-Gaussianity from Preheating |
Fri, Feb 6 |
TEXAS COSMOLOGY CENTER SEMINAR Constraints on the non-linear coupling parameter f_NL with CMB data |
Mon, Feb 2 |
TEXAS COSMOLOGY CENTER SEMINAR Weak Lensing and Large-Scale Structure |
Thurs, Jan 29 |
TEXAS COSMOLOGY CENTER: SPECIAL PRESENTATION Acceleration in our Past and our Present Leonardo Senatore, Institute for Advanced Study, Princeton |
Mon, Jan 26 |
TEXAS COSMOLOGY CENTER SEMINAR Optimising the next generation of Dark Energy Surveys David Parkinson, University of Sussex, England |
Thurs, Jan 22 |
TEXAS COSMOLOGY CENTER SEMINAR Dark Matter and Dark Radiation |