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Past Colloquia

Reconstructing the physics of transients using machine learning

Cody Hall

Wolfgang Kerzendorf, Michigan State University

October 25, 2023
2:00pm - 3:00pm

Supernova explosions are some of the most energetic and luminous events in the universe, andunderstanding them is crucial for many areas of astrophysics. One way to gain insight into the physicalprocesses involved in these explosions is through supernova tomography, which involves reconstructinga spatially resolved explosion…

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How Black Holes Shine

Cody Hall

Prof. Bart Ripperda, CITA, University of Toronto

October 18, 2023
2pm - 3pm

Astrophysical black holes are surrounded by accretion disks, jets, and coronae consisting of magnetized relativistic plasma. They produce observable high-energy radiation from nearby the event horizon and it is currently unclear how this emission is exactly produced. The radiation typically has a non-thermal component, implying…

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Mind the Gap: The far-infrared gap and Canadian milestones on the Far-Infrared astrophysical roadmap

Cody Hall

Prof. Locke Spencer, University of Lethbridge

October 11, 2023
2:00pm - 3:00pm

Abstract: Over half of the energy emitted by the Universe appears in the relatively unexplored Far-Infrared (Far-IR) spectral region, which is virtually opaque from the ground and must be observed by space-borne instrumentation. The dominant limiting factor of many current open questions in astrophysics is…

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The Quantitative Reasoning Skills and Numerical Affect of Astronomy Students

Cody Hall

Kate Follette, Amherst College

October 04, 2023
2:00pm - 3:00pm

Much of the dialogue surrounding effective pedagogy for college-level general education astronomy courses has been focused on how best to engender  “science literacy”, yet students cannot be scientifically literate without also being quantitatively literate. Basic numerical skills such as graph reading, proportional reasoning, and estimation are tools that…

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From Pixels to Parameters

Cody Hall

Prof. Stephen Portillo, Concordia University

September 27, 2023
2:00pm - 3:00pm

Much of astronomy uses pixelized data, but the size and complexity of these data often strain the capability of existing data analysis techniques. I will present algorithms built on advances in statistics and machine learning that allow more science to be done with the same…

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U of T Astronomy Jamboree

BA 1130

Various Speakers from UofT Astro Units

September 20, 2023
2:00pm - 4:00pm

More information coming soon.

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Transcending the Limits of Astrostatistics with Machine Learning Methods

Virtual Colloquium

Yuan-Sen Ting, Australian National University

April 11, 2023
9:00 am - 10:00am

Astronomy has undergone a profound transformation in recent years, as the acquisition of ever-growing amounts of data through increasingly powerful instruments has opened up a wealth of new avenues of exploration. However, this boon is not without its own set of challenges, as astronomical observations…

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Astro Colloquium: Witnessing the Universe with ACT

Cody Hall

Suzanne Staggs

March 29, 2023
3:00pm - 4:00pm

The Atacama Cosmology Telescope (ACT) made measurements of the cosmic microwave background (CMB) for fifteen years, with a series of three cameras.  ACT was designed to complement Planck, the latest and most sensitive CMB satellite.  To compete with the powerful data set provided from a …

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DADDAA Faculty Search: “Atomic Gas in Nearby Galaxies as a Cosmological Probe”

AB88

Dr. Kristine Spekkens

March 28, 2023
2:00pm - 3:30pm

The atomic gas (HI) content of nearby galaxies provides important insight into how they form and evolve within the standard cosmology. In this talk, I will highlight some of my group’s recent progress towards building statistical samples of HI detections for nearby galaxies to use…

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Astro Colloquium: The formation of galaxies and supermassive black holes. Early results from JWST.

Cody Hall

Prof. Tommaso Treu, UCLA

March 22, 2023
3:00pm - 4:00pm

In just a few months, JWST has revolutionized our understanding of the universe. Its unprecedented sensitivity and angular resolution have given us a new view of the cosmos, enabling new discoveries in many areas of astronomy. I will describe first results from my GLASS-JWST Early…

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