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Past Colloquia

Colloquium with Carol-Ann Burke

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Carol-Ann Burke, OISE, University of Toronto

April 06, 2022
2:00 pm - 3:00 pm

More information coming soon

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Colloquium with Shude Mao

March 23, 2022
2:00 pm - 3:00 pm

More information coming soon.

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Dynamical probes of black holes in globular clusters

TBD

Vincent Hénault-Brunet, Saint Mary's University

March 09, 2022
2:00 pm - 3:00 pm

Abstract: Globular star clusters (GCs) have long been used to test theories of stellar evolution, stellar dynamics, and galaxy formation. In recent years, these old and compact stellar systems have emerged as fertile grounds to search for black holes and understand their formation, as well…

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Resolving to Resolve (or Re-solve?) Issues in Galaxy Formation with Resolved Data Abstract: 

Cody Hall,

Adam Muzzin, York University

March 02, 2022
2:00 pm - 3:00 pm

Over the last decade we have made staggering progress measuring the mass growth and star formation rates of the galaxy population out to z ~ 10.  Although we now know when galaxies form their stars and grow their black holes, the how, where and why…

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What have we learned from gravitational wave detections?

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Jess McIver, University of British Columbia

February 23, 2022
2:00 pm - 3:00 pm

In less than five years, the field of gravitational wave astronomy has grown from a groundbreaking first discovery to revealing new populations of stellar remnants through distant cosmic collisions. I’ll summarize recent results from LIGO-Virgo and their wide-reaching implications, give an overview of the instrumentation…

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A Golden Age of Asteroseismology with Kepler and TESS

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Prof. Tim Bedding, University of Sydney

February 16, 2022
2:00 pm - 3:00 pm

Asteroseismology uses the natural oscillation modes of stars to study their interiors.  The wonderfully precise measurements by NASA’s Kepler and TESS missions are ideal data sources for the technique.   These space telescopes have been monitoring the brightness of hundreds of thousands of stars, with the…

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Cosmic dawn through the eye of space telescopes

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Michele Trenti, University of Melbourne

February 09, 2022
4:00pm - 5:00pm

During the last decade, the synergy between space-based infrared observations and theoretical/numerical modeling transformed our view of galaxy formation at cosmic dawn, and progress is expected to accelerate with next generation facilities. I will review the status of the field, in particular recent Hubble WFC3…

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65 years after Sputnik: A critical juncture in humanity’s use of space

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Fred Lamb, University of Illinois at Urbana-Champaign

February 02, 2022
2:00 pm - 3:00 pm

Abstract: Near-Earth space has become increasingly valuable and its use has grown enormously in recent years. This is having a dramatic impact on the space environment, which is very vulnerable and can easily be ruined by irresponsible behavior or a small number of destructive actions…

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Lonely Planets – direct imaging discoveries of gas giant exoplanets with the Young Suns Exoplanet Survey

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Prof. Matthew Kenworthy, Leiden Observatory, The Netherlands

January 26, 2022
2:00 pm - 3:00 pm

Abstract: We have indirectly detected thousands of planets beyond our Solar System through the effect they have on their parent stars, either by the reflex motion of their orbit or when the planet’s orbit causes the planet to transit the disk of the star. For…

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Cosmic gas flows in the circumgalactic medium

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Freeke van de Voort, Cardiff University

January 19, 2022
2:00 pm - 3:00 pm

Galaxies are intimately connected to the environments they live in. The haloes around them contain the gas reservoir from which the galaxies grow, while galactic outflows heat and enrich this ‘circumgalactic medium’ (CGM). Using ‘zoom-in’ cosmological, magnetohydrodynamical simulations, I will discuss the physical and observable properties of the gas around…

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