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Past Events

Event Date Summary
Astronomy Colloquium: James Bullock Wed. April 13th, 2016
11:00 am-12:00 pm

Cosmology and the Local Group
James Bullock (UCalifornia, Irvine)
The Local Group and the tiny galaxies that surround the Milky Way provide unique and detailed data sets for testing ideas in cosmology and galaxy formation. …Read more.

Astronomy Colloquium: Hongsheng Zhao Mon. April 11th, 2016
11:00 am-12:00 pm

New Physics Beyond Galaxies
Hongsheng Zhao (University of St Andrews)
I will show how current data on galaxies and clusters could be used to constrain the new physics of dark matter and relativity.   …Read more.

Astronomy Colloquium: Elena D’Onghia Wed. March 30th, 2016
11:00 am-12:00 pm

The Structure and Dynamics of the Milky Way Stellar Disk
Elena D’Onghia (U Wisconsin)
Ongoing surveys are revolutionizing our understanding of Galaxy dynamics. At the same time, advances in computational cosmology have led to improved predictions for the properties of galaxies in the LCDM theory. …Read more.

Astronomy Colloquium: Kevin Stevenson Wed. March 16th, 2016
11:00 am-12:00 pm

Today’s Exo-Weather Forecast: Hot and Humid with a Chance of Clouds
Kevin Stevenson (Chicago)
Planet-finding surveys have revealed thousands of confirmed exoplanets and candidates awaiting verification.  Many of these objects were discovered indirectly using the transit technique, which is a powerful tool that has transformed our understanding of planetary system architecture.  …Read more.

Astronomy Colloquium: Kathryn Johnston Thu. March 3rd, 2016
3:00 pm-4:00 pm

Dark Matter and Stellar Halos around Galaxies:  Formation, Histories and Structure
Kathryn Johnston, Columbia University
The existence of spectacular low-surface-brightness features – remnants of past mergers – surrounding many galaxies has been known about for many decades.  …Read more.

Joint Phys/Astro Colloquium: John Monnier (Cancelled) Thu. February 25th, 2016
4:15 pm-5:15 pm

Cancelled due to inclement weather.

Astronomy Colloquium: Adam Leroy Wed. February 17th, 2016
11:00 am-12:00 pm

Star Formation-Driven Molecular Superwinds as Understood From the Two Nearest Starburst Galaxies (and a Small Survey)
Dr. Adam Leroy, Ohio State University
I will use the two nearest starburst galaxies: M82 and NGC 253 as examples to discuss the origin and fate of galaxy-scale molecular outflows driven by star formation. …Read more.

Astronomy Colloquium: Tony Sohn Wed. February 3rd, 2016
11:00 am-12:00 pm

Dynamics of Local Group Galaxies via HST Proper Motions
Tony Sohn (Johns Hopkins U)
The Universe evolves hierarchically with small structures merging and falling in to form bigger structures. …Read more.

Astronomy Colloquium: Kristen McQuinn Wed. January 13th, 2016
11:00 am-12:00 pm

Leo P: Galaxy Evolution at the Faint-end of the Luminosity Function
Kristen McQuinn (University of Texas, Austin)
Theories of galaxy evolution have been tested by our a growing knowledge of low-mass galaxies. …Read more.

Astronomy Colloquium: Edo Berger Thu. December 10th, 2015
3:00 pm-4:00 pm

Short-Duration Gamma-Ray Bursts and the Electromagnetic Counterparts of Gravitational Wave Sources
Edo Berger (Harvard)
Gamma-ray bursts are the most luminous and energetic explosions known in the universe.  They appear in two varieties:  long- and short-duration.  …Read more.

Astronomy Colloquium: Kevin Croxall Wed. December 2nd, 2015
11:00 am-12:00 pm

Oxygen in the Local Universe: Establishing Order through CHAOS
Kevin Croxall (OSU)
The metal content of a galaxy is one of the most important properties used
to distinguish between viable evolutionary scenarios and strongly influences
many of the physical processes in the ISM. …Read more.

Astronomy Colloquium: Jennifer Johnson Thu. November 12th, 2015
3:00 pm-4:00 pm

The Secret Lives of Stars: Galactic History from the APOGEE Survey
Jennifer Johnson (Ohio State University)
The history of a galaxy can be traced through its stars: their compositions, their ages, and their motions. …Read more.

Astronomy Colloquium: Benoit Famaey Wed. October 21st, 2015
11:00 am-12:00 pm

Galactoseismology in the Milky Way
Benois Famaey, CNRS/Strasbourg

Current Galactic dynamical models still often rely on the zeroth order assumptions of a smooth time-independent and axisymmetric gravitational potential. First order perturbed models are those trying to isolate the effects of one main perturber, such as the bar or the spiral arms. …Read more.

Astronomy Colloquium: Frank Summers Wed. October 14th, 2015
11:00 am-12:00 pm

Frank Summers (STScI)
Truth and Beauty in Astronomy Visualization
The presentation of complex scientific ideas demands both precision and detail. The interpretation of even graphical representations generally requires specialized knowledge. …Read more.

Astronomy Colloquium: Gail Zasowski Wed. September 30th, 2015
11:00 am-12:00 pm

Gail Zasowski (Johns Hopkins University)
New Tools for Galactic Archaeology from the Milky Way
One of the critical components for understanding galaxy evolution is understanding the Milky Way Galaxy itself — its detailed structure and chemodynamical properties, as well as fundamental stellar physics, which we can only study in great detail locally.  …Read more.

Astronomy Colloquium: David Merritt Wed. September 9th, 2015
11:00 am-12:00 pm

How Things Get Into (Supermassive) Black Holes
David Merritt, Rochester Institute of Technology

Gas near the center of a galaxy can find its way into the central black hole without much difficulty, but stars need to be nudged. …Read more.

Astronomy Colloquium: Michelle Collins Wed. September 2nd, 2015
11:00 am-12:00 pm

The faintest galaxies as probes of cosmology and galactic evolution
Michelle Collins (Yale)
As the faintest galaxies we are able to observe in the Universe, the dwarf spheroidals can be thought of as the fundamental galactic unit. …Read more.

Page last modified: June 29, 2016