Past Colloquia
Colloquium with Michael Zemcov
Cody Hall, AB 107, University of Toronto
Michael Zemcov, Rochester Institute of Technology
April 08, 2020
3:00 pm - 4:00 pm
More information coming soon.
A night at high speed: exploring the minute-cadence sky with the Evryscopes
Cody Hall, AB 107
Nick Law
March 25, 2020
3:00 pm - 4:00 pm
The Evryscopes are array telescopes that cover the entire visible sky in each and every exposure. Based in the mountains of Chile and California, the systems together take a 1.3 Gigapixel image of the sky every two minutes, reaching depths of 16th magnitude in each…
Colloquium with Jay Strader
Cody Hall, AB 107, University of Toronto
Jay Strader
March 18, 2020
3:00 pm - 4:00 pm
More information coming soon…
Light Echoes of Eta Carinae, Massive Star Mergers, and Pre-Supernova Eruptions
Cody Hall, AB 107, University of Toronto
Nathan Smith, Steward Observatory, University of Arizona
March 11, 2020
3:00 pm - 4:00 pm
Eta Carinae is the most massive and most luminous evolved star known in the Local Group, and it provides a glimpse of the violent phases of eruptive mass loss that can occur in unstable massive stars before they die. Despite a wealth of high-quality data…
The Formation of Binary Stars and Planets
Cody Hall, AB 107
Maxwell Moe, University of Arizona
February 26, 2020
3:00 pm - 4:00 pm
The majority of solar-type stars are born in binaries, and therefore star and planet formation must be examined in the context of stellar multiples. I will first highlight the hurdles in standard migration models of close binaries and hot Jupiters. Although the majority of close…
Students Doing Astronomy Like Astronomers: Teaching Astronomy Through Observation and Modelling
Cody Hall, AB 107, University of Toronto
Pierre Chastenay, UQAM
January 15, 2020
3:00 pm - 4:00 pm
How do young people learn science? What to do about their naïve conceptions? How can we better support them in learning scientific concepts? These are some of the questions that will be addressed in this colloquium, which will focus more specifically on teaching basic astronomical…
Stellar systems at low radio frequencies: The discovery of radio exoplanets
Cody Hall, AB 107, University of Toronto
Joe Callingham, Netherlands Institute for Radio Astronomy
December 18, 2019
3:00 pm - 4:00 pm
For more than thirty years, radio astronomers have searched for auroral emission from exoplanets. With LOFAR we have recently detected strong, highly circularly polarised low-frequency (144 MHz) radio emission associated with a M-dwarf – the expected signpost of such radiation. The star itself is quiescent,…
The Milky Way Laboratory
Cody Hall, AB 107, University of Toronto
Cara Battersby, University of Connecticut
December 11, 2019
3:00 pm - 4:00 pm
Our own Milky Way Galaxy is a powerful and relatively nearby laboratory in which to study the physical processes that occur throughout the Universe. From the organization of gas on galactic scales to the life cycle of gas and stars under varied environmental conditions, studies…
Numerical experiments on star formation: mass functions and star-forming core properties
Cody Hall, AB 107
Lee Hartmann, University of Michigan
November 13, 2019
3:00 pm - 4:00 pm
I present results from a set of numerical simulations of star formation with a restricted set of physics designed to isolate and understand basic processes. Cloud simulations of star (sink) formation which develop a large dynamic range in mass beyond fragmentation limits and good number…
The Southern Stellar Stream Spectroscopic Survey
Cody Hall, AB 107
Ting Li, Carnegie Observatories, Carnegie Institution for Science Pasadena
October 30, 2019
3:00 pm - 4:00 pm
In this talk, I will present an ongoing spectroscopic program, the Southern Stellar Stream Spectroscopic Survey (S5), which maps newly discovered stellar streams with the fiber-fed AAOmega spectrograph on the Anglo-Australian Telescope. S5 is the first systematic program pursuing a complete census of known streams in the Southern Hemisphere, providing a uniquely powerful sample for understanding the building…