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Past Colloquia

Extreme Makeover: Titan Edition

Cody Hall, AB 107

Catherine Neish (University of Western Ontario)

November 14, 2018
3:00 pm - 4:00 pm

When the Cassini spacecraft arrived at Titan in 2004, it revealed a varied and active world previously unseen. Unique among the icy satellites, Titan’s surface shows evidence for extensive modification by fluvial and aeolian processes. Erosion likely contributes to the noticeable lack of craters on…

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Karl Kamper Memorial Lecture – “Science and Technology of the Mid-Infrared ELT Imager and Spectrograph (METIS)”

Cody Hall, AB 107

Bernhard Brandl, Leiden University

November 07, 2018
3:00 pm - 4:00 pm

The Mid-Infrared ELT Imager and Spectrograph (METIS) is one of three first generation, scientific instruments on the European Extremely Large Telescope (ELT).  The ELT with its 39 meter aperture is expected to see first light in 2024. In my talk I will provide a brief…

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Galaxy Evolution from Nearby Resolved Galaxies

Cody Hall, AB 107

Karen Masters (Haverford College)

October 31, 2018
3:00 pm - 4:00 pm

The morphology of a galaxy provides information on the orbits of stars within it. As such, important clues to the formation history of galaxies is revealed by their morphologies, and this information is complimentary, but not identical to, their star formation history and chemical composition…

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Metal-poor stars and the Pristine Survey

Cody Hall, AB 107

Kim Venn (University of Victoria)

October 24, 2018
3:00 pm - 4:00 pm

Metal-poor stars are one of the best ways to probe the early epochs in the Universe since they presumably formed before significant star formation could pollute the pristine gas.  I will present results from a new survey to find these rare stars using a narrow-band…

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An Inclusive View of Planetary Systems

Cody Hall, AB 107

Wei Zhu (CITA, University of Toronto)

October 17, 2018
3:00 pm - 4:00 pm

Similar to our solar system, extra-solar systems likely also contain a diversity of planets, and planets around the same star likely have (or had) interactions with each other. Therefore, the relations of planets inside the same system conveys important clues on their origin and evolution…

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Galactic Dynamics with Gaia DR2

Cody Hall, AB 107

Daisuke Kawata (Mullard Space Science Laboratory, UCL)

October 03, 2018
3:00 pm - 4:00 pm

European Space Agency’s Gaia mission has made the 2nd data release (Gaia DR2) on 25th April 2018. Gaia DR2 provides position, parallax and proper motions for more than one billion stars with unprecedented accuracy and radial velocity for about 7 million bright stars. In this…

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Protoplanets and Protoplanetary Disks

Cody Hall, AB 107

Josh Eisner (University of Arizona)

September 26, 2018
3:00 pm - 4:00 pm

Based on the existence of our solar system, and thousands of known exoplanets, we know that planets form.  While theories have been developed to explain the demographics of these known planets, we have few direct constraints on the physical processes involved in planet formation.  I…

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Galaxy Cluster Evolution over the Past 10 Billion Years

Cody Hall, AB 107

Michael A. McDonald (MIT Kavli Institute)

September 19, 2018
3:00 pm - 4:00 pm

In recent years, the number of known galaxy clusters at has grown dramatically thanks in large part to the success of surveys utilizing the Sunyaev Zel’dovich effect. In particular, surveys such as the South Pole Telescope 2500 deg^2 survey have discovered hundreds of new distant…

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Dynamical modeling of MaNGA galaxies

Cody Hall, AB 107

Shude Mao (Tsinghua University)

August 08, 2018
15:00 - 16:00

The SDSS-IV MaNGA survey will eventually obtain integrated field unit data for ten thousand galaxies in the nearby universe; currently more than half of the data have already been collected. I will discuss how dynamical modeling of these galaxies can be used to study their…

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Native Skywatchers – A Leading Model for Indigenous STEM – and Examples of More Inclusive Science

Cody Hall, AB 107

Annette Lee (St. Cloud State University)

April 25, 2018
14:00 - 15:00

Annette S. Lee is an astrophysicist, artist and the Director of the Native Skywatchers (NSW) research and programming initiative with three decades of experience in education as a teacher, university instructor, teacher educator, program administrator, professional visual artist, and researcher. The overarching goal of NSW…

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