Colloquia Schedule Spring 2014
Colloquia are on Tuesdays (unless otherwise indicated) at 3:30 pm in RLM 15.216B
No talk scheduled. |
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"The Connection between Star Formation and the Cold Interstellar Medium in Nearby Galaxies" University of Arizona host: Shardha Jogee |
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"The Unusual Eclipser of the Young Star J1407: Moon-forming Circumplanetary Disk?" University of Rochester host: TBA |
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"A Calibration of the Stellar-mass Fundamental Plane at
Massachusetts Institute of Technology host: Pawan Kumar |
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Tinsley Visiting Scholar, Interstellar Matter Group "Volatiles in Protoplanetary Disks" Space Telescope Science Institute (STScI) host: Neal Evans |
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DeVaucouleurs Medalist: COLLOQUIUM "Connecting Gas to Stars in Galaxies" University of Cambridge, UK host: Neal Evans |
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DeVaucouleurs Medalist: PUBLIC LECTURE "The Hidden Universe Revealed" University of Cambridge, UK host: Neal Evans |
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"The Seeds of Massive Galaxies" University of Edinburgh host: Shardha Jogee |
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"Our Galactic Supermassive Black Hole Sgr A*: The Ideal Testbed for Theories of Accretion and Black Hole Life Cycles" University of Amsterdam host: Pawan Kumar |
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Spring Break: 10-14 March: No talk scheduled. |
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"Rest-frame Optical Spectra: A Window into Galaxy Formation at z~2" University of California, Los Angeles host: Steve Finkelstein |
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Tinsley Visiting Scholar, Stars Group "Hunting the First Generations of Stars and Galaxies" Massachusetts Institute of Technology host: Fritz Benedict |
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"Shadows of Their Future Selves: Accretion and Obscuration in Young Stellar Objects" Lowell Observatory host: Adam Kraus |
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"Head in the Clouds: Decoding the Spectral Features Produced by Brown Dwarf and Exoplanent Atmospheres" Hunter College/AMNH host: Adam Kraus |
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PhD Defense Presentation "Measuring Dark Matter Profiles Non-Parametrically in Dwarf Spheroidal Galaxies" University of Texas at Austin |
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"Hunting the First Galaxies with Gravitational Lensing" The first galaxies are a frontier of extragalactic astronomy. How and when did they form, and how did they contribute to reionization? Answers to these questions require both census taking and detailed studies of individual galaxies. Hubble and Spitzer have revealed galaxies well into the epoch of reionization (z > 6). Gravitational lensing has enabled relatively efficient discovery of galaxies at the highest redshifts. The Cluster Lensing And Supernova survey with Hubble (CLASH) Multi-Cycle Treasury program revealed galaxies as distant as MACS0647-JD at z ~ 10.8 (420 Myr). Upcoming HST WFC3/IR grism spectroscopy should help confirm this z ~ 11 discovery, and deep Spitzer imaging will constrain the galaxy's age, stellar mass, and rest-frame UV slope (beta). Searches for additional z ~ 10 candidates have so far revealed fewer than expected. This z ~ 10 deficit suggests more rapid buildup in galaxy numbers and cosmic star formation rate density during the first 600 million years than at later times. Improved statistics to confirm or controvert this deficit are forthcoming from the Frontier Fields program. The first two strongly lensed Hubble Frontier Fields images are now our deepest images of the universe to date, probing nJy sources. I will present predictions and early results from this program. I will also show expectations for future wide field space-based surveys with Euclid and WFIRST-AFTA. These programs will significantly advance our understanding of galaxy evolution in the first billion years while providing promising targets for more detailed study with JWST. Space Telescope Science Institute (STScI) host: Steve Finkelstein |
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Tinsley Visiting Professor "Adventures in Cosmic Star Formation" National Optical Astronomy Observatory (NOAO) host: TBA |
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Tinsley Visiting Scholar, Exgal Group "MaNGA: Mapping Nearby Galaxies at Apache Point Observatory An IFU Survey of 10,000 Galaxies" University of Tokyo, IPMU host: Niv Drory |
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Tinsley Visiting Scholar, Planets Group "Extrasolar Planets with Small Telescopes" Princeton University host: Mike Endl |
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No talk scheduled. |
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"Stark Broadening of Hydrogen Spectral Lines in Plasmas: Advanced Theories, Benchmark Experiments, Astrophysical Applications" Auburn University host: Don Winget |
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.
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