Colloquia Schedule Spring 2011
Colloquia are on Tuesdays (unless otherwise indicated) at 3:30 pm in RLM 15.216B
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Dust in the Early Universe INAF/Osservatorio Astronomico di Roma host: Volker Bromm |
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Magnetic Relaxation in ICM Bubbles and the Magnetic Flux Problem in Star Formation University of Bonn (TCC Tinsley Scholar) host: Craig Wheeler |
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Reading the Record of Ancient Impacts California Institute of Technology host: Pawan Kumar |
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Star Formation in Galaxy Clusters Over the Past 10 Billion Years Texas A&M University and University of Zurich host: Neal Evans |
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McDonald Observatory Board of Visitors Meeting (Austin) |
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19th Annual Great Lecture in Astronomy Exploring Newly Discovered Worlds with the Giant Magellan Telescope University of Texas at Austin |
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Is Inhomogeneity Important in Cosmology? University of Cape Town host: Tanja Rindler-Daller |
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Exploration of the Circum-Galactic Medium at High Redshifts California Institute of Technology (Tinsley Visiting Professor) host: Karl Gebhardt |
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Clarifying our View of Star Formation in Extreme Environments with Adaptive Optics The formation of stars is a fundamental astrophysical process; and yet we still debate whether it varies with environment. Milky Way young star clusters range in mass over four orders of magnitude; but, the best-studied star forming regions, such as Taurus and Orion, represent only a small range of initial conditions at the low mass end. Young star clusters with masses greater than 10,000 solar masses are promising targets for determining whether the initial mass function (IMF) that results from the star formation process is universal or depends on environment. Such clusters are challenging observational targets as they require high spatial resolution at infrared wavelengths and are heavily contaminated by field stars. I present results from a Keck adaptive optics study of several massive young star clusters in the Milky Way, including around the supermassive black hole at the Galactic Center. Precise IMFs are constructed by using high-precision astrometry and spectroscopy to distinguish individual cluster stars. I will discuss whether the measured IMFs differ for massive clusters at a range of Galactocentric radii and how they compare to the "universal" IMF established locally. California Institute of Technology host: Jenny Greene |
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DeVaucouleurs Medalist Chemical Abundances in the Oldest Galactic Stars: Globular Clusters vs. the Halo Field UCOLICK host: Chris Sneden |
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DEEP2 and Beyond: Studying Galaxy Evolution and Large-Scale Structure with Deep Surveys University of Pittsburgh (TCC Visiting Speaker) host: Eiichiro Komatsu |
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Spring Break: 14-18 March: No talk scheduled |
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Diverse Energy Sources for Supernovae UCSB/Kavli Institute for Theoretical Physics (Tinsley Visiting Professor) host: Donald Winget |
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Exploding Stars! UCSB/Kavli Institute for Theoretical Physics (Tinsley Visiting Professor) host: Donald Winget |
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Recent Advances in our Understanding of Enigmatic Gamma-ray Bursts University of Texas at Austin host: TBD |
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Physical Properties of Kepler's Small Exoplanets Harvard-Smithsonian Center for Astrophysics host: Jenny Greene |
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The Physical Properties of Lyman-alpha Emitters from z=2 to 3 Pennsylvania State University host: Karl Gebhardt |
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Thermal Tides: An Explanation for the Inflated Radii of the Hot Jupiters Institute for Advanced Study, Princeton host: Jenny Greene |
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Magnetic Reconnection and the Evolution of Large Scale Magnetic Fields McMaster University, Ontario, Canada host: Craig Wheeler |
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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.