Calendar
2011
September-December
Mon, Dec 5 |
TCC Presentation / Theoretical Astrophysics Seminar Hydrogen and Helium Reionization [abstract] |
Fri, Dec 2 |
Special Astronomy/Physics Joint Colloquium Cosmic Information: IT from BIT, from BITs in IT [abstract] J. Richard Bond, Canadian Institute for Theoretical Astrophysics (CITA) |
Wed, Nov 30 |
TCC Presentation / Cosmos Seminar Giant Gamma-ray Bubbles in the Inner Galaxy: AGN Activity or Bipolar Galactic Wind? [abstract] |
Mon, Nov 21 |
PhD Defense Presentation / Theoretical Astrophysics Seminar Toward an Understanding of the Large Scale Structure of the Universe with Galaxy Surveys [abstract] |
Mon, Nov 14 |
TCC Presentation / Theoretical Astrophysics Seminar The Plasma Physics and Cosmological Implications of TeV Blazars [abstract] Philip Chang, University of Wisconsin, Milwaukee (formerly of CITA-ICAT) |
Wed, Nov 9 |
TCC Presentation / Cosmos Seminar Cosmology without Cosmic Variance [abstract] |
Wed, Nov 2 |
TCC Presentation / Cosmos Seminar The Mass Assembly History of Black Holes in the Universe [abstract] |
Wed, Oct 26 |
TCC Presentation / Cosmos Seminar New Results from the South Pole Telescope [abstract] |
Mon, Oct 24 |
TCC Presentation / Theoretical Astrophysics Seminar From OWLS to FiBY: Numerical Simulations of Galaxy Formation and Evolution [abstract] Claudio Dalla Vecchia, Max Planck Institute for Extraterrestrial Physics |
Mon, Oct 17 |
TCC Presentation / Theoretical Astrophysics Seminar Lyman-alpha in Three Dimensions [abstract] The Lyman-alpha forest is a series of absorption features in the spectra of distant quasars, blue-ward of the Lyman-alpha emission line. These features arise as the light from the quasar is absorbed by the intervening neutral hydrogen. This gives one-dimensional information about the fluctuations in the neutral hydrogen density along the line of sight to the quasar. When spectra of many quasars are combined, it allows one to build a three-dimensional image of the fluctuations in the neutral hydrogen density and thus infer the corresponding fluctuations in the matter density. This makes the Lyman-alpha forest a unique probe of the distant Universe, opening a novel window on understanding dark energy, dark matter, neutrino properties and inflation. Using the 14,000 quasars from the first year data, the BOSS experiment has detected, for the first time, three-dimensional correlations in the Lyman-alpha forest fluctuations to cosmological distances. The signal has thhe expected amplitude and redshift-space distortions and we find no evidence for overwhelming instrumental or astrophysical contamination. The BOSS experiment was projected to measure the distance to the redshift of z ~ 2.5 with a better than 2% precision through detection of baryonic acoustic signature in the flux correlations. The present results give these forecasts new credibility. |
Thurs, Sep 29 |
TCC Presentation / Extragalactic Seminar Galaxy Mergers through Cosmic Time [abstract] |
Thurs, Sep 8 |
TCC Presentation / Extragalactic Seminar Galaxy Formation and Evolution through Metals [abstract] |
January-May
Mon, May 23 |
TCC Presentation / Special Seminar Galaxy-Galaxy Weak Lensing as a Tool to Correct Finger-of-God Effects in Redshift Power Spectrum Measurements [abstract] |
Thurs, May 12 |
TCC Presentation / Special Seminar Host vs. Subhalo-2D Density Profile Measured from Galaxy-Galaxy Lensing [abstract] |
Fri, May 6 |
TCC Presentation / Special Seminar Velocity Probe on Cosmology [abstract] |
Thurs, May 5 |
TCC Presentation / Extragalactic Seminar The Dark Matter Halo - Galaxy Connection in the Local Universe and Local Group [abstract] |
Thurs, Apr 28 |
TCC Presentation / Extragalactic Seminar Understanding the Global Course of Galaxy Evolution at z < 1 [abstract] |
Fri, Apr 22 |
TCC Presentation / Special Seminar Obscured Quasars at High Redshift [abstract] |
Tue, Apr 12 |
TCC Presentation / Weinberg Theory Seminar Screening Dark Energy [abstract] |
Wed, Mar 30 |
TCC Presentation / Cosmos Seminar The Influence of Structure Formation on the Interpretation of Dark Matter Experiments [abstract] |
Tues, Mar 8 |
TCC Presentation / Astronomy Colloquium DEEP2 and Beyond: Studying Galaxy Evolution and Large-Scale Structure with Deep Surveys [abstract] |
Tue, Feb 15 |
TCC Presentation / Astronomy Colloquium Is Inhomogeneity Important in Cosmology? [abstract] |
Wed, Feb 9 |
TCC Presentation / Cosmos Seminar High Resolution Imaging of the Sunyaev-Zel'dovich Effect in Galaxy Clusters [abstract] |
Wed, Feb 9 |
TCC Presentation / Stellar Seminar Observational Constraints on Dark Matter Heating in White Dwarf Stars [abstract] |
Mon, Jan 31 |
TCC Special Colloquium / Theoretical Astrophysics Seminar Dark Matter [abstract] |
Wed, Jan 26 |
TCC Presentation The Matching of the Cosmic Star Formation Rate and the Cosmic Supernova Rate [abstract] |
Wed, Jan 19 |
TCC / Cosmos Seminar Cosmological Imprints of f(R) Gravity [abstract] |
Tue, Jan 18 |
TCC / Colloquium (Tinsley Scholar) Dust in the Early Universe [abstract] |