Colloquia Schedule Fall 2011
Colloquia are on Tuesdays (unless otherwise indicated) at 3:30 pm in RLM 15.216B
Not your Parents' M Dwarfs: Probing the Milky Way with its Smallest Constituents (Cancelled due to Hurricane Irene: to be rescheduled) Boston University host: Colette Salyk |
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Maxwell, Einstein, and Their Impossibilities Center for Nonlinear Dynamics & Dept. of Physics, University of Texas at Austin hosts: Paul Shapiro & Tanja Rindler-Daller |
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Dark Matter, Dwarf Galaxies, and Massive Failures in the Halo of the Milky Way University of California, Irvine host: TBD |
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Black Hole Scaling Relations University of Michigan host: Karl Gebhardt |
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The Quest for the Dynamical Signature of Close Supermassive Binary Black Holes Pennsylvania State University host: Julie Comerford |
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What is a Galaxy? Haverford College host: TBD |
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No talk scheduled, to avoid conflict with Frank N. Bash Symposium |
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Status update on the James Webb Space Telescope project NASA Goddard Space Flight Center host: TBD |
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GAMA: from Little Blue Fuzzies to Massive Red Monsters and Beyond Swinburne University host: Karl Gebhardt |
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Casting Shadows on the Standard Interstellar Medium Paradigm with GALFA-HI Our understanding of the diffuse interstellar medium (ISM) revolves around the balance of pressures between warm and cold phases and the interruption of that balance by the explosion of stars in supernovae. I will show new results enabled by the GALFA-HI survey that throw these standard theoretical underpinnings into disarray. I will discuss our investigation of the nearest cold neutral medium (CNM) to the sun, deep within the boundaries of the local cavity. High spectral resolution observations of this object present interesting constraints to theorists and simulators who propose that CNM clouds are formed by the collision of warmer clouds. Observations of the absorption of soft X-rays by this CNM show that X-rays emanate much nearer to the sun than was thought before, casting doubt on the local hot bubble theory. I will also discuss some very new results about how ISM morphological information may give us better insights into the explosive history of the ISM. These finding all suggest we have much to learn about the Galactic ISM we call home. Columbia University host: Sarah Tuttle |
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Beatrice M. Tinsley Visiting Scholar The Origins of Planetary Systems - Constraints from Protoplanetary Disks University of Arizona host: John Lacy |
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No talk scheduled. |
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No talk scheduled. |
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Stellar Forensics with Explosions: Supernovae, Gamma-Ray Bursts, and their Environments New York University, Center for Cosmology and Particle Physics host: Sarah Tuttle |
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HETDEX Special Colloquium Astrophotonics and Space Photonics: A New Era of Instrumentation University of Sydney, School of Physics host: Sarah Tuttle |
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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