Astronomy 381S - Spring 2017
Seminar in Theoretical Astrophysics
M 3:30 · RLM 15.316B · Not for credit Spring 2017
J. Craig Wheeler · RLM 17.230 · (512) 471-6407 · email
Schedule
Jan. 23 |
J. Craig Wheeler University of Texas at Austin |
Organizational Meeting |
Jan 30 |
No talk scheduled |
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Feb 6 |
No talk scheduled |
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Feb 13 3:00 p.m. RLM 5.104 |
SPECIAL COLLOQUIUM L. Ilsedore Cleeves Harvard-Smithsonian Center for Astrophysics |
From Disks to Planets Through the Astrochemical Lens |
Feb 20 3:00 p.m. RLM 5.104 |
SPECIAL COLLOQUIUM Sanchayeeta Borthakur Johns Hopkins University |
Role of Baryon Flows in Galaxy Evolution: Hidden Pathways Connecting Galaxies to the Cosmic Web |
Feb 27 3:00 p.m. RLM 5.104 |
SPECIAL COLLOQUIUM Kristen McQuinn The University of Texas at Austin |
Low-Mass Galaxies: Windows into Galaxy Formation and Evolution |
Mar 6 3:00 p.m. RLM 5.104 |
SPECIAL COLLOQUIUM Adam Ginsburg NRAO |
High-mass star and cluster formation in the Galaxy |
Mar 13 |
Spring Break |
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Mar 20 |
External Review |
No talk scheduled |
Mar 27 |
Sera Markoff University of Amsterdam |
A combined approach to understanding black hole energy release: from micro- to macrophysics |
Apr 3 |
Ken Chen National Astronomical Observatory of Japan |
Lighting up the Universe with Extreme Supernovae |
Apr 10 |
Wenbin Lu The University of Texas at Austin |
A more complete story of the jetted tidal disruption event Swift J1644+57 |
Apr 17 |
Mei-Yu Wang Texas A&M |
Effects of Tides on Milky Way Dwarf Satellite Galaxies Using detailed observations of the Local Group to study wide-ranging questions in galaxy formation and dark matter physics has become a rich field over the past decade. I will discuss frameworks that address some of these questions by combining high-precision stellar kinematic measurements with state-of-art cosmological hydrodynamical N-body simulations. I will demonstrate that the properties of satellite galaxy dark matter subhalo implied by stellar kinematic data can be linked to the environmental effects such as infall time and the gravitational tidal interaction with Milky Way potential. In the cold dark matter (CDM) scenario, some dwarf galaxies show influences under significant gravitational tidal forces, which may leave imprints on their stellar distribution and kinematics. I will discuss how these features could serve as tests to the nature of dark matter or stellar feedback strength. I will also discuss how we can study those tidally “disturbed” or even “destroyed” satellite galaxies as building blocks to our Milky Way stellar halo by understanding the properties of their progenitors and observation limits imposed by current data. |
Apr 24 |
No talk scheduled |
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May 1 |
No talk scheduled |
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9 December 2016
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