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Wednesday, February 19, 2025 11:30 am - 12:30 pm EST (GMT -05:00)

Astroseminar - Tobias Geron

Tobias Geron finished his PhD in Astrophysics at the University of Oxford, UK, and he recently started as a Rubin fellow at the University of Toronto. Tobias spends his time between studying bars in galaxies and developing software to study transients with the upcoming Vera C. Rubin Observatory. 

Wednesday, February 26, 2025 11:30 am - 12:30 pm EST (GMT -05:00)

Astroseminar - Veronika Dornan

Veronika Dornan is a final-year PhD candidate in the Department of Physics and Astronomy at McMaster University. Her research uses observations of galaxies' globular star cluster systems as tracers of their evolutionary histories. She is particularly interested in studying the globular cluster system mass - halo mass scaling relation and understanding what drives this relation from dwarf galaxies to massive ellipticals galaxies.

The Universe is big – so big that measuring its size is incredibly difficult. By mapping out the positions of galaxies, cosmologists can trace the structure of the Universe, observing patterns in this structure that can be used as a ruler. In this month’s KPL astronomy talk, Dr. Will Percival will talk about this technique, called Baryon Acoustic Oscillations, highlighting how we came to learn that the Universe is expanding at an accelerating rate.

Wednesday, March 5, 2025 11:30 am - 12:30 pm EST (GMT -05:00)

Astroseminar - Erik Osinga

Dr. Erik Osinga is a postdoctoral fellow at the Dunlap Institute. He completed his PhD at Leiden University in 2023. Erik's work centres on understanding how magnetic fields and particle acceleration shape the environments within and around galaxy clusters.

Wednesday, March 26, 2025 11:30 am - 12:30 pm EDT (GMT -04:00)

Astroseminar - Frits Paerels

Frits Paerels got his PhD in the Netherlands, was a postdoc and a researcher at UC Berkeley, and has been at Columbia since 1995. He has been a professor of astronomy since 2001. His interests have centered on high energy astrophysics, and especially on X-ray spectroscopy. Some of the topics he has worked on are the spectroscopy of X-ray binaries, the physics of the interstellar medium and the intergalactic medium, galaxy clusters, and, on and off, the spectroscopy of X-ray emitting neutron stars.