The Astrophysics Podcast

Paul Duffell
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The Astrophysics Podcast

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!

Épisodes

  1. 1 NOV.

    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.

    55 min

  2. 1 OCT.

    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.

    1 h 10 min

  3. 1 SEPT.

    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.

    1 h 10 min

  4. 1 AOÛT

    Dr. Jason Wang -- Taking a Photo of an Exoplanet

    For centuries, all that we have known about planets was confined to our own solar system, and its occasionally-changing number of planets (eight as of now). But in the past several decades, astronomers have developed increasingly sophisticated techniques for detecting planets outside our solar system, orbiting distant stars many light-years away. Dr. Jason Wang is an innovator who has developed powerful data analysis methods which have allowed us to take direct images of these exoplanets.

    46 min

  5. 1 JUIL.

    Dr. Rosalba Perna -- The Neighborhood of a Supermassive Black Hole

    Planets orbit stars, and moons orbit planets, so what orbits a supermassive black hole? Possibly a whole lot of stuff, including a gaseous disk, thousands of stars and more "normal size" black holes! Dr. Rosalba Perna tells us about all the crazy things that could be orbiting around the supermassive black holes that we detect at the center of active galaxies.

    1 h 5 min

  6. 1 JUIN

    Dr. Soham Mandal -- What Happens to Supernovae After they Explode?

    When a star explodes, it's not finished having an impact on its surroundings. For the next thousand years or so, we can still see it as a supernova remnant, when the explosion has expanded to large enough scales that we can actually resolve an image of the explosion with modern telescopes like JWST, and it's even possible to do a forensic analysis to learn more about the cause of death. We will be talking about supernova remnants with Dr. Soham Mandal, who just recently earned his PhD from Purdue University.

    51 min

  7. 1 MAI

    Dr. Yuan Li -- Our Turbulent Universe

    What is turbulence? You've probably experienced it before on a plane (or perhaps on a river) but you might not know precisely what it is. But turbulence is all around us, and in particular we find it on some of the largest scales in the universe. Professor Yuan Li talks about turbulence and also a little unrelated bit about Mira, an unusual star with a tail!

    57 min

  8. 1 AVR.

    Dr. Ashley Villar -- Big Data in Astrophysics

    Astronomers deal with huge datasets, and they are about to get even bigger with the construction of the Vera Rubin Observatory. When you can detect a million supernovae per year, how do we make sense of this data and decide which ones are the "most interesting" to study? Professor Ashley Villar at the Center for Astrophysics | Harvard & Smithsonian has made her career out of developing machine learning techniques to answer this very question.

    1 h 3 min

  9. 1 MARS

    Dr. Frank Timmes -- Pulsing White Dwarfs, Neutrinos, and the Infrastructure of Research

    What are neutrinos and where do they come from? How do we know what's going on in the interior of a star when we can only see the surface? How does a paper get accepted into a scientific journal? We discuss these questions and more with Frank Timmes, professor at Arizona State University and Associate Editor-in-Chief of a number of scientific journals run by the American Astronomical Society.

    58 min

  10. 1 FÉVR.

    Dr. Erica Nelson -- Watching the First Galaxies Form

    How did the galaxies form and how can we learn about them? Professor Erica Nelson of the University of Colorado, Boulder tells us how we use the James Webb Space Telescope (JWST) to look back in time and learn about the initial formation of structure in the universe.

    1 h

  11. 1 JANV.

    Dr. Abigail Polin -- A New Type of Supernova

    How do stars explode? It turns out there's more than one way, and Professor Abigail Polin has discovered a totally new way that stars can end their lives. We talk with Professor Polin about how that works and how scientists look at a supernova to figure out what caused the explosion.

    1 h 4 min
  • 11 épisodes

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29 notes

À propos

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!

Informations

  • Création
    Paul Duffell
  • Années d’activité
    2 k
  • Épisodes
    11
  • Classification
    Tous publics
  • Copyright
    © Paul Duffell 2024
  • Site web de l’émission
    The Astrophysics Podcast

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