Astronomy 386S - Spring 2015
Seminar in Extragalactic Astronomy
Th 3:30 · RLM 15.216B · Not for credit Spring 2015
Date
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Speaker
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Title
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Jan 15
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Peter Erwin
MPE, Garching, Germany
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SPECIAL PRESENTATION: "Composite Bulges: The Coexistence of Classical Bulges and Disky Pseudobulges in Disk Galaxies" (host: Eva Noyola)
abstract
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Jan 22
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Shardha Jogee
University of Texas at Austin
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Organizational meeting.
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Jan 29
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Yi-Kuan Chiang
University of Texas at Austin
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"Surveying Galaxy Proto-clusters in Emission: A Large-scale Structure at z=2.44 and the outlook for HETDEX"
abstract
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Feb 5
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John Feldmeier
Youngstown State University
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"Observational Studies of Intracluster and Intragroup Light and how HETDEX will help"
abstract
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Feb 12
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Peter Behroozi
Space Telescope Science Institute
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Special Colloquium: "Insights into Galaxy Formation from z =15 to the Present Day"
We show that the ratio of galaxies' specific star formation rates to their host halos' specific mass accretion rates strongly constrains how the galaxies' stellar masses, specific star formation rates, and host halo masses evolve over cosmic time. This evolutionary constraint provides a simple way to probe z>8 galaxy populations without direct observations, and predicts that JWST should see galaxies above 10^8 Msun even to z=15. We also discuss using close galaxy pairs as a probe for major halo mergers at very low redshifts (z<0.06). We find only modest increased quenching associated with major halo mergers, contrary to expectations from gravitational heating or gas starvation models, but consistent with models where quenching results from decoupling of the galaxy with its surrounding gas reservoirs.
close
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Feb 19
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Desika Narayanan
Haverford College
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Special Colloquium: "Three Problems in Trying to Form Galaxies (and how ISM Physics can Save Us"
abstract
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Feb 26
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Gail Zasowski
Johns Hopkins University
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Special Colloquium: "New Tools for Galactic Archaeology from the Milky Way"
abstract
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Mar 5
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No talk scheduled
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Mar 12
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Christina Thompson
Northrop Grumman
Joel Green
Space Telescope Science Institute
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"Webb Telescope Briefing"
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Mar 19
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No talk scheduled. Spring Break: March 16-20.
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Mar 26
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Speaker: TBA
Affiliation: TBD
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"Title: TBA"
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Apr 2
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Speaker: TBA
Affiliation: TBD
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"Part of High z Meeting"
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Apr 9
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Matthew Stevans
University of Texas at Austin
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"Title: TBA"
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Apr 16
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Rebecca Tippens
University of Texas at Austin
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"Title: TBA"
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Apr 23
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Briana Indahl
University of Texas at Austin
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"Title: TBA"
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Apr 30
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John Kormendy
University of Texas at Austin
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"Title: TBA"
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May 7
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Speaker: TBA
Affiliation: TBD
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"Title: TBA"
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