Colloquia Schedule Fall 2014
Colloquia are on Tuesdays (unless otherwise indicated) at 3:30 pm in RLM 15.216B
"Hot Chromospheres and Flares on Cool and Ultracool Dwarfs" Ohio State University host: Adam Kraus |
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"Let it Collide: An Epic Saga of Star Wars Planets, Planetesimals, and Super Planet Crashes" University of Texas at Austin host: Adam Kraus |
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"The Complex Interplay between Star Formation and Galaxy Evolution from z~0-6" Haverford College host: Steve Finkelstein |
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"Compact Galaxies and Super-Massive Black Holes" Max Planck Institute for Astronomy (MPIA), Heidelberg host: Karl Gebhardt |
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"The Architecture and Timing of Planetary Systems" University of Chicago host: TBD |
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"Who's Afraid of the Big Bad Supermassive Black Hole?" Pennsylvania State University host: Steve Finkelstein |
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"Puzzles in the Structure of Disk Galaxies" Queen's University, Kingston, Ontario, Canada host: Karl Gebhardt |
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"Galaxy Build-up in the First Gyr: Insights from ultra-deep HST and Spitzer Observations" The observational frontier of galaxy build-up now lies at only ~450 Myr after the Big Bang, at redshifts z~10-12. While only a handful of galaxies are identified at these early cosmic times so far, I will show how the powerful combination of the Hubble and Spitzer Space Telescopes allows us to probe the assembly of galaxies over 96% of cosmic history. In particular, in this talk I will review the remarkable progress we made over the last few years in studying galaxies within the reionization epoch at z>6. Thanks to the combination of various surveys with the WFC3/IR camera on the HST, it became possible to identify an unprecedented sample of >800 galaxies at z~7-8, and we are now building up the sample sizes at z~9-12. These detections allow us to directly track the evolution of the UV luminosity function and the cosmic star-formation rate density in the first 1 Gyr of cosmic time. At the same time, deep observations with Spitzer/IRAC probe the rest-frame optical light of these galaxies, leading to the first measurement of the stellar mass density out to z~10 and to constraints on the epoch of first star-formation in these systems. I will put these results in the context of cosmic reionization by galaxies and end my talk with a future perspective of the JWST era and beyond. Yale University host: Steve Finkelstein |
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"Forming Earths and Mercuries: Solids Less Volatile than Ice" American Museum of Natural History, New York host: Joel Green |
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"Shedding Lyman Alpha Light on Cosmological Reionization" Arizona State University host: Steve Finkelstein |
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"From Disks to Planets: Observational Insights" Rice University host: Adam Kraus |
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"The Giant Magellan Telescope Project: Science and Status" Giant Magellan Telescope (GMT) host: Taft Armandroff |
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"There's Government in Your Science" American Astronomical Society host: Jeff Silverman |
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DeVaucouleurs Medalist DeVaucouleurs Lecture: "The Growth of Supermassive Black Holes and Galaxy Evolution" Yale University dinner host: Shardha Jogee (Medal Awarded by Daniel Jaffe) |
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DeVaucouleurs Medalist Public Lecture: "Black Holes, Galaxies and the Evolution of the Universe: An Observer's View" Yale University dinner host: Daniel Jaffe |
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DeVaucouleurs Medalist UT CNS Women in Science Lecture: "Why So Few? The Dearth of Women in Science" Yale University dinner host: Dean Linda Hicke |
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"Brown Dwarfs as Exoplanet Analogs" Bucknell University, Lewisburg PA host: Adam Kraus |
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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