Colloquia Schedule Spring 2011
Colloquia are on Tuesdays (unless otherwise indicated) at 3:30 pm in RLM 15.216B
Dust in the Early Universe In the last few years mm and submm observations of high redshift quasars
and galaxies have provided a powerful way of probing the very existence
and properties of dust within 1 Gyr of the Big Bang. It is generally believed
that at these cosmic times dust could have only condensed in the explosive
ejecta of supernovae since intermediate-to-low mass stars did not
have time to evolve off the main sequence into the dust-condensation stage.
To account for the dust masses observed at z > 6, about 1 Msun of dust per
supernova needs to be produced, in agreement with the condensation efficiencies
predicted by supernova dust nucleation models. However, the largest dust masses
measured so far in supernova ejecta are about two orders of magnitude smaller.
Conversely, indications for supernova dust beyond z ~ 6 have recently come from
observations of dust reddening of the host galaxies of a z = 6.2 quasars and
z = 6.3 gamma-ray burst. INAF/Osservatorio Astronomico di Roma host: Volker Bromm |
|
Magnetic Relaxation in ICM Bubbles and the Magnetic Flux Problem in Star Formation University of Bonn (TCC Tinsley Scholar) host: Craig Wheeler |
|
Reading the Record of Ancient Impacts California Institute of Technology host: Pawan Kumar |
|
Star Formation in Galaxy Clusters Over the Past 10 Billion Years Texas A&M University and University of Zurich host: Neal Evans |
|
McDonald Observatory Board of Visitors Meeting (Austin) |
|
|
19th Annual Great Lecture in Astronomy Exploring Newly Discovered Worlds with the Giant Magellan Telescope University of Texas at Austin |
Is Inhomogeneity Important in Cosmology? University of Cape Town host: Tanja Rindler-Daller |
|
|
Exploration of the Circum-Galactic Medium at High Redshifts California Institute of Technology (Tinsley Visiting Professor) host: Karl Gebhardt |
Clarifying our View of Star Formation in Extreme Environments with Adaptive Optics California Institute of Technology host: Jenny Greene |
|
DeVaucouleurs Medalist Chemical Abundances in the Oldest Galactic Stars: Globular Clusters vs. the Halo Field UCOLICK host: Chris Sneden |
|
DEEP2 and Beyond: Studying Galaxy Evolution and Large-Scale Structure with Deep Surveys University of Pittsburgh (TCC Visiting Speaker) host: Eiichiro Komatsu |
|
Spring Break: 14-18 March: No talk scheduled |
|
Diverse Energy Sources for Supernovae UCSB/Kavli Institute for Theoretical Physics (Tinsley Visiting Professor) host: Donald Winget |
|
|
Exploding Stars! UCSB/Kavli Institute for Theoretical Physics (Tinsley Visiting Professor) host: Donald Winget |
Recent Advances in our Understanding of Enigmatic Gamma-ray Bursts University of Texas at Austin host: TBD |
|
Physical Properties of Kepler's Small Exoplanets Harvard-Smithsonian Center for Astrophysics host: Jenny Greene |
|
The Physical Properties of Lyman-alpha Emitters from z=2 to 3 Pennsylvania State University host: Karl Gebhardt |
|
Thermal Tides: An Explanation for the Inflated Radii of the Hot Jupiters Institute for Advanced Study, Princeton host: Jenny Greene |
|
Magnetic Reconnection and the Evolution of Large Scale Magnetic Fields McMaster University, Ontario, Canada host: Craig Wheeler |
|
Title: TBA Affiliation: TBD host: TBD |
Visitors to the Department of Astronomy can find detailed information and maps on our Visiting Austin Page.
Please report omissions/corrections to: G. Orris at argus@astro.as.utexas.edu.
Current
Previous