Fri, Dec 18
2:00 P.M.
RLM 15.216B

Video Conference of Physics Colloquium at Texas A&M University

Latest Results from the Cryogenic Dark Matter Search Experiment

Rupak Mahapatra, Texas A&M University

Thu, Dec 17
4:00 P.M.
RLM 9.166

Webcast of ACKS Seminar at SLAC

Recent Results from CDMS

Jody Cooley, Southern Methodist University

Mon, Nov 16
3:30 P.M.
RLM 15.216B

Theoretical Astrophysics Seminar

Cosmological hydrogen recombination: the effect of high-n states and forbidden transitions [abstract]

Daniel Grin, California Institute of Technology

Fri, Nov 13
2:00 P.M.
RLM 15.216A

Informal TCC Seminar

Relative motion of dark matter and baryonic fluids and non-linear effects in density evolution [abstract]

Dmitriy Tseliakhovich, California Institute of Technology

Thu-Fri,
Oct 29-30

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
3:30 P.M.
RLM 15.216B

Antoinette de Vaucouleurs Memorial Lecture

Cosmic Microwave Background, Clusters of Galaxies and Cosmology [abstract]

Rashid Sunyaev, Max Planck Institute for Astrophysics

Tue, Oct 27
7:00 P.M.
ACES 2.302

Antoinette de Vaucouleurs Public Lecture
(preceded by reception at 6:00 P.M.)

The Richness and Beauty of the Physics of Cosmological Recombination [abstract]

Rashid Sunyaev, Max Planck Institute for Astrophysics

Tue, Oct 27
2:00 P.M.
RLM 7.104

Theory Group Seminar

Floating black holes in warped higher-dimensional bulk [abstract]

Takahiro Tanaka, Kyoto University, Yukawa Institute for Theoretical Physics

Mon, Oct 26
3:30 P.M.
RLM 15.216B

Theoretical Astrophysics Seminar (2nd half)

Vortices (and the Angular Momentum Problem) in Bose-Einstein-Condensed Cold Dark Matter Halos [abstract]

Several suggestions have appeared in the literature that cold dark matter (CDM) may be in the form of a Bose-Einstein condensate (BEC), including axionic and other forms of CDM. This has important implications for the physics of structure formation, notably at small scales where one expects significant deviations from the more standard CDM, due to the superfluidity exhibited by BECs. However, even on the scales of individual galactic halos, the issue of acquiring angular momentum during galaxy formation is affected. Laboratory BECs are known to develop vortices when rotated with sufficient angular velocity. In cosmology, simulations of structure formation in the CDM model show that halos acquire angular momentum as they form, consistent with that expected from gravitational tidal torquing by the surrounding large-scale structure. Vortices could, in principle, then result if the CDM is a BEC. We address this point by calculating the critical angular velocity for vortex creation in some simple models of BEC/CDM galactic halos and comparing the results with the angular velocity expected from cosmological N-body simulations of CDM. We start from the Gross-Pitaevskii equation of motion for the BEC wave function, coupled self-consistently to the Poisson equation, to describe self-gravitating BEC halos of ellipsoidal shape with varying degrees of rotational support. The implications of these results for cosmological models of CDM involving BECs will be discussed.

Tanja Rindler-Daller, University of Cologne, Germany

Mon, Oct 26
3:30 P.M.
RLM 15.216B

Theoretical Astrophysics Seminar (1st half)

Is Cold Dark Matter a Bose-Einstein Condensate? [abstract]

Paul Shapiro, University of Texas at Austin

Thu, Oct 22
3:30 P.M.
RLM 15.216B

TCC/Extragalactic Seminar

The Spitzer Deep, Wide-Field Survey [abstract]

Daniel Stern, Jet Propulsion Laboratory/Caltech

Thu, Oct 1
7:00 P.M.
TCC 1.110

Public Lecture: Thompson Conference Center

The Shape of Space [abstract]

Jeff Weeks, PhD (Mathematics) Princeton University

Mon, Sep 21
3:30 P.M.
RLM 15.216B

TCC/Astrophysics Theory Seminar

A New Perspective on Galaxy Clustering as a Cosmological Probe: General Relativistic Effects [abstract]

Jaiyul Yoo, Harvard-Smithsonian Center for Astrophysics

Mon, Aug 24
2:00 P.M.
RLM 15.216B

PhD DEFENSE

Gravitational Dynamics of Halo Formation in a Collisional versus Collisionless Cold Dark Matter Universe [abstract]

Jun Koda, University of Texas at Austin

Tue, Aug 25
1:00 P.M.
RLM 15.216B

PhD DEFENSE

Primordial non-Gaussianity from multi-field inflation re-examined [abstract]

Yuki Watanabe, University of Texas at Austin

Tue, May 26
2:00 P.M.
RLM 7.104

THEORY GROUP SPECIAL SEMINAR

Dark Matter Signals from Cascade Annihilations

Daniel Stolarski, University of California, Berkeley

Tue, May 19
2:00 P.M.
RLM 7.114

THEORY GROUP SPECIAL SEMINAR

(Personal) Summary of the Sovay Workshop on 'Cosmological Frontiers in Fundamental Physics'

Eiichiro Komatsu, University of Texas at Austin

Fri, Apr 24
2:00 P.M.
RLM 5.104

THEORY GROUP SEMINAR

Dark Stars

Katherine Freese, University of Michigan, Ann Arbor

Thu, Apr 23
10:00 A.M.
RLM 15.216A

INFORMAL TCC SEMINAR

Covariance Matrix of the Matter Power Spectrum [abstract]

Ryuichi Takahashi, University of Nagoya, Japan

Tue, Apr 21
3:30 P.M.
RLM 15.216B

TEXAS COSMOLOGY CENTER SEMINAR

Do Halo Mergers Trigger Quasars? [abstract]

Jorge Moreno, Haverford College, Haverford, Pennsylvania

Tues, Apr 21
2:00 P.M.
RLM 7.104

THEORY GROUP SEMINAR

Sommerfeld-Enhancing the Dark Matter Annihilation Rate

Pearl Sandick, University of Texas

Thurs, Apr 2
2:00 P.M.
RLM 7.104

WEINBERG THEORY GROUP SEMINAR

Reevaluating the WIMP Miracle [abstract]

Scott Watson, University of Michigan

Wed, Mar 25
4:15 P.M.
RLM 4.102

PHYSICS COLLOQUIUM

Cosmology as Science? From Inflation to Eternity

Lawrence Krauss, Arizona State University

Tues, Mar 24
3:30 P.M.
RLM 15.216B

TEXAS COSMOLOGY CENTER COLLOQUIUM

Formation of Primordial Stars and Black Holes [abstract]

Naoki Yoshida, IPMU, University of Tokyo

M-F, Mar 16-20

SPRING BREAK

No seminars or colloquia scheduled.

Mon, Mar 9
3:30 P.M.
RLM 15.216B

TEXAS COSMOLOGY CENTER COLLOQUIUM

Testing Gravity with Gravitational Lensing and Dynamics [abstract]

Bhuvnesh Jain, University of Pennsylvania

Mon, Feb 23
3:30 P.M.
RLM 15.216B

TEXAS COSMOLOGY CENTER SEMINAR

Primordial Non-Gaussianity from Preheating

Andrei Frolov, Simon Fraser University

Fri, Feb 6
10:45 A.M.
RLM 15.216A

TEXAS COSMOLOGY CENTER SEMINAR

Constraints on the non-linear coupling parameter f_NL with CMB data

Andres Curto, Instituto de Fisica Cantabria, Spain

Mon, Feb 2
3:30 P.M.
RLM 15.216B

TEXAS COSMOLOGY CENTER SEMINAR

Weak Lensing and Large-Scale Structure

Jun Zhang, University of California at Berkeley

Thurs, Jan 29
2:00 P.M.
RLM 7.104

TEXAS COSMOLOGY CENTER: SPECIAL PRESENTATION

Acceleration in our Past and our Present

Leonardo Senatore, Institute for Advanced Study, Princeton

Mon, Jan 26
3:30 P.M.
RLM 15.216B

TEXAS COSMOLOGY CENTER SEMINAR

Optimising the next generation of Dark Energy Surveys

David Parkinson, University of Sussex, England

Thurs, Jan 22
2:00 P.M.
RLM 7.104

TEXAS COSMOLOGY CENTER SEMINAR

Dark Matter and Dark Radiation

Lotty Ackerman, Caltech