Once a month, Purdue University's Professor Paul Duffell discusses astronomy and astrophysics with experts from around the world. Duffell and guests discuss sup...
Dr. Paul Duffell -- The Universe on a Computer (with host Dr. Abigail Polin)
How big a computer do you need to simulate a supernova? Or a planet being formed? Or a black hole swallowing gas? Many astrophysicists spend their time developing computational models to simulate these systems and learn how they evolve. We discuss these computer simulations with Purdue Professor Dr. Paul Duffell. In this first episode of season 2, Dr. Abigail Polin takes over as host.
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1:10:28
Dr. Brenna Mockler -- When Black Holes Get Hungry
What do black holes like to eat? Sometimes a steady diet of interstellar gas just isn't enough and a black hole needs to snack on a whole star. No judgment, we all get that way sometimes. But it can lead to some extremely energetic outflows, visible from across the universe. Dr. Brenna Mockler tells us all about these events, called "Tidal Disruption Events", and what we can learn from observing them.
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1:00:30
Dr. Dan Milisavljevic -- Into the Time Domain
Our universe isn't just a static, unchanging backdrop. It is constantly changing in time and we now have the technology to image it over and over again to explore all those changes. This is called Time Domain Astronomy, and Danny Milisavljevic is an expert in this field. He spends a lot of his time on the forensic science of exploding stars, to gain clues about the underlying processes that caused the explosion in the first place.
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55:08
Dr. Katelyn Breivik -- How Binary Stars Evolve
What would our solar system be like if we had two suns? Actually, this situation could be more common than you might think, as most stars are in binary systems. If a star is in a binary pair, how does that affect its life and death? Dr. Katelyn Breivik of Carnegie Mellon University tells us all about these systems and what scientists and other curious minds can learn from them.
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1:09:35
Dr. Kyoungsoo Lee -- Our Galactic Neighborhood
What's the biggest thing in the universe, besides the universe itself? Well, stars live in galaxies, and galaxies live in large collections called galaxy clusters. Astronomers can study these titanic clusters of galaxies to learn about how they grow and merge with each other to assemble the universe we live in today. Dr. Kyoung-Soo Lee takes us on a journey to the largest scales in the cosmos.
Once a month, Purdue University's Professor Paul Duffell discusses astronomy and astrophysics with experts from around the world. Duffell and guests discuss supernovae, galaxies, planets, black holes, and the nature of space and time.Supported by the National Science Foundation under grant AAG-2206299.Music by Brittain Ashford.Produced in beautiful Lafayette, Indiana by Paul Duffell.Follow us on BlueSky!
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