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


Jan. 23 J. Craig Wheeler
University of Texas at Austin
Organizational Meeting

Jan 30 No talk scheduled

Feb 6 No talk scheduled

Feb 13
3:00 p.m.
RLM 5.104
L. Ilsedore Cleeves

Harvard-Smithsonian Center for Astrophysics
From Disks to Planets Through the Astrochemical Lens

During the first few Myr of a young star's life, it is encircled by a disk made up of molecular gas, dust, and ice: building blocks of future planetary systems. How and when these disks form planets and what sets their initial composition remain key unanswered questions in disk science. In recent years, the Atacama Large Millimeter/Submillimeter Array (ALMA) has transformed our understanding of the chemical composition and physical properties of protoplanetary disks. Major advances in sensitivity and spatial resolution have revealed complex radial, vertical, and azimuthal structures in the dust and gas. In this talk, I will review recent observational results and new theoretical puzzles, highlighting the central role of energetic and ionizing processes originating from the host star and nearby stars, and discuss how these fit into the emerging, broader picture of the disk environment. Finally, I will describe future avenues to observationally connect the outer, cold disk reservoir to the inner, terrestrial planet-forming region with future infrared observations, along with new techniques to detect individual young protoplanets in situ.


Feb 20
3:00 p.m.
RLM 5.104
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
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
Adam Ginsburg

High-mass star and cluster formation in the Galaxy


Mar 13 Spring Break

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


Apr 24 No talk scheduled

May 1 No talk scheduled

9 December 2016
Astronomy Program · The University of Texas at Austin
prospective student inquiries:
site comments: · web accessibility policy · web privacy policy