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Past Events

Event Date Summary
Astronomy Colloquium: Daniela Calzetti Thu. April 13th, 2017
2:30 pm-3:30 pm

The Scales of Star Formation – Insights from the UV
Daniela Calzetti (UMass)
Over two decades of observations from the Ultraviolet to the Infrared with a host of space missions, including the HST, Spitzer, Herschel, GALEX, etc. …Read more.

Astronomy Colloquium: Jay Strader Wed. March 22nd, 2017
3:00 pm-4:00 pm

Black Holes in Globular Clusters
Jay Strader (Michigan State University)
Hundreds of stellar-mass black holes form in the early lifetime of a typical globular star cluster. But, unlike the case for neutron stars, no bright X-ray binaries containing black holes have been observed in globular clusters, which led to theoretical predictions that most or all of the black holes should be efficiently ejected through dynamical interactions. …Read more.

Astronomy Colloquium: Chris Impey Thu. March 9th, 2017
2:30 pm-3:30 pm

Science Literacy in the MOOC Era
Chris Impey (Arizona)
In a world shaped by science and technology, the persistently low level of science literacy of the general
public is a cause for concern. …Read more.

Astronomy Colloquium: Ian Roederer Wed. March 1st, 2017
3:00 pm-4:00 pm

Heavy Metals from the First Stars to Today
Ian Roederer (UMichigan)
NASA’s Cosmic Origins program aims to address the question, “How did we get here?”  My work addresses this question through three broad themes: the nature of the first stars, the formation and evolution of the Milky Way and Local Group, and the origin of the elements.  …Read more.

Astronomy Colloquium: Nelson Padilla Tue. February 21st, 2017
2:00 pm-3:00 pm

Angular momentum in galaxy formation simulations
Nelson Padilla (U Catolica de Chile)
In this talk I will present studies on the evolution of the angular momentum of galaxies in the EAGLE simulation where we try and identify the mechanisms that contribute to the growth of their angular momentum, including smooth mass accretion, mergers, and mergers with different degrees of alignment with the galaxy’s angular momentum.  …Read more.

Astronomy Colloquium: Steinn Sigurdsson Wed. February 15th, 2017
3:00 pm-4:00 pm

How black holes get their kicks: dynamical evolution and coalescence
Steinn Sigurdsson (Penn State U)
Recent observations have increased interest in the possibilities of a significant population of black hole binaries in the local universe. …Read more.

Astronomy Colloquium: Laura Lopez Wed. January 25th, 2017
3:00 pm-4:00 pm

Observational Assessment of Stellar Feedback in Nearby Galaxies
Laura Lopez (Ohio State U)
Massive stars have a profound astrophysical influence throughout their tumultuous lives and deaths. Stellar feedback – the injection of energy and momentum by stars to the interstellar medium (ISM) – occurs through a variety of mechanisms: radiation, photoionization heating, winds, jets/outflows, supernovae, and cosmic-ray acceleration. …Read more.

Astronomy Colloquium: Michael Skrutskie Fri. December 9th, 2016
11:00 am-12:00 pm

Diffraction-limited Mid-Infrared Imaging with the 23-meter Large Binocular Telescope
Michael Skrutskie (Virginia)
While the world awaits the construction of the Giant Magellan Telescope, Thirty Meter Telescope, and the European Extremely Large Telescope, the Large Binocular Telescope (LBT) at Mt. …Read more.

Astronomy Colloquium: Monica Valluri Wed. November 30th, 2016
3:00 pm-4:00 pm

Using the Stellar Halo to Probe the Assembly of the Milky Way
Monica Valluri (U Michigan)
Over the next decade there will be an explosion of high quality kinematical data on hundreds of millions of stars in the Milky Way’s stellar halo. …Read more.

Astronomy Colloquium: Kelly Holley-Bockelmann Thu. November 10th, 2016
2:30 pm-3:30 pm

Building Supermassive Black Hole Binaries
Kelly Holley-Bockelmann (Vanderbilt)

Astronomers now know that supermassive black holes reside in nearly every galaxy. Though these black holes are an observational certainty, nearly every aspect of their evolution — from their birth, to their fuel source, to their basic dynamics — is a matter of lively debate. …Read more.

Astronomy Colloquium: Ed Moran Wed. October 26th, 2016
3:00 pm-4:00 pm

AGN unification: the hidden truth
Ed Moran (Wesleyan U)
Seyfert galaxies have been traditionally classified into two groups based on the presence (type 1) or absence (type 2) of broad permitted emission lines in their optical spectra.  …Read more.

Astronomy Colloquium: Doug Hamilton Fri. October 14th, 2016
11:00 am-12:00 pm

The Origin of Titan and Hyperion
Doug Hamilton (Maryland)
Titan is arguably the Solar System’s most unusual satellite. It is fifty times more massive than Saturn’s other moons and is the only satellite with a substantial atmosphere. …Read more.

Astronomy Colloquium: Bill Janesh Wed. September 28th, 2016
3:00 pm-4:00 pm

Needles in a Haystack: Searching for Optical Counterparts to Ultra-compact High Velocity HI Clouds
Bill Janesh (Indiana University)
Low mass galaxies, and particularly those with recent or active star formation, are excellent laboratories to answer questions about galaxy formation and evolution. …Read more.

Page last modified: July 19, 2017