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Date
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Speaker
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Title
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Aug 28
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No talk scheduled.
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Sep 4
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J. Craig Wheeler
University of Texas at Austin
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"Open House discussion: Questions and Context of the McDonald Observatory Directorship"
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Sep 11
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No talk scheduled.
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Sep 18
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Jonathan Trump
Penn State University
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"How do Galaxies Grow their Supermassive Black Holes?" (host: S. Finkelstein)
I will use observations from the SDSS (z~0), COSMOS (z~1), and CANDELS (z~2) to demonstrate that the growth of supermassive black holes is connected to the star formation and morphology of their host galaxies. In particular, I will reveal how the observations rule out both mergers and violent disk instabilities as dominant fueling modes. Instead, most black hole growth is secularly fueled by the same gas which drives star formation, with no evidence for the rapid quenching of star formation by quasar feedback. I will also discuss the "chicken or egg" question of which grows first: the galaxy bulge, or the supermassive black hole. In contrast to the well-known local Mbh-sigma relation, actively accreting black holes are common even in low-mass and bulgeless disk galaxies at higher redshift. These data suggest that the supermassive black hole "egg" may be in place before the mature "chicken" phase of evolved bulges in the host galaxy.
close
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Sep 25
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Special Colloquium Speaker
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See the handbills posted around the department for the details of the special colloquium that is being held today.
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Oct 2
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No talk scheduled.
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Oct 9
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No talk scheduled.
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Oct 16
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A UT Austin Astronomy Faculty meeting is being held at this time.
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Oct 23
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Mansi Kasliwal
Carnegie Institution for Science
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"Seeing Gravitational Waves: Transients in the Local Universe" (host: Gebhardt)
abstract
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Oct 30
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Sarah Miller
University of California, Irvine
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"Uncovering Dark Matter Properties with Astrophysics" (host: Jogee)
abstract
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Nov 6
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Caitlin M. Casey
University of California, Irvine
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"Mergers or not? A Submillimeter Perspective on Cosmic Star Formation" (host: S. Finkelstein)
abstract
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Nov 13
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No talk scheduled.
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Nov 20
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A UT Astronomy Faculty and Research Scientist Meeting is being held at this time.
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Nov 27
|
Speaker: TBD
Affiliation: TBA
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"Title: TBA"
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Dec 4
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Speaker: TBD
Affiliation: TBA
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"Title: TBA"
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