Past Events

  • 2023 Mar 30

    ITC Colloquium - Michelle Vick (Northwestern)

    11:00am to 12:00pm

    Location: 

    Phillips

    "Chaotic Tides and Hot Jupiter Formation"

    Abstract: Many hot Jupiters (HJs) have been observed to have large obliquities or misalignments between the stellar spin axis and the orbital angular momentum of the planet. This observation hints that at least a portion of HJs formed through high-eccentricity migration, in which a cold Jupiter is excited onto a highly eccentric orbit that circularizes over time due to tidal dissipation in the planet. Previous studies of high-e migration have use parameterized treatments of weak tidal friction and overlooked critical contributions from...

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  • 2023 Mar 23

    ITC Luncheon

    12:30pm to 1:30pm

    Location: 

    Phillips and livestreamed
    TBD
  • 2023 Mar 23

    ITC Colloquium - Katie Breivik (Flatiron)

    11:00am to 12:00pm

    Location: 

    Phillips

    "LISA's role in multi-band and multi-messenger astronomy for stellar-origin sources"

    Abstract: The Galactic population of double stellar remnants will be the largest source class, by number, for LISA as well as the largest noise source for the mission at frequencies below 1 mHz. Double white dwarf binaries make up the vast majority of the population and are flagship multimessenger sources, observable both with electromagnetic (EM) surveys and gravitational waves (GWs). More massive stellar remnants, like neutron stars and black holes, will be observable as extra-Galactic...

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  • 2023 Mar 09

    ITC Colloquium - Gil Holder (UIUC)

    10:00am to 12:00pm

    Location: 

    Phillips

    "Astrophysics with CMB Surveys"

    High-resolution ground-based CMB experiments provide new perspectives on many areas of astrophysics. As examples, I will talk about current work using the South Pole Telescope as well as possibilities for future CMB experiments. I will discuss luminous mm-wave flares from nearby stars, mapping gravitational lensing on large scales, helium reionization, and searches for cosmic birefringence. 

  • 2023 Mar 02

    ITC Luncheon

    12:30pm to 1:30pm

    Location: 

    Phillips and livestreamed: https://youtube.com/live/SE6DELrpcZA?feature=share

    Warren Brown (CfA), “White dwarf binaries and gravitational wave detections

    Matt Orr (Flatiron), TBD

    Ulrich Steinwandel (Flatiron), “The origin of multiphase galactic winds

    Melinda Soares-Furtado (Wisconsin-Madison), “...

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  • 2023 Mar 02

    ITC Colloquium in Pratt - Melinda Soares-Furtado (Wisconsin-Madison)

    11:00am to 12:00pm

    Location: 

    Pratt

    In Pratt!!

    "Worlds and Suns in Context: Environments & Evolutionary Pathways"

    The growing population of exoplanets and the expanding repertoire of instruments and analysis techniques make it possible to examine moons, planets, and suns within the context of their environments and evolutionary history. In this talk, I discuss how my team leverages stellar evolutionary models, observational survey data, and statistical methods to probe the interactions and evolution of moons, planets, and suns. More specifically, I present the effects of planetary collision, accretion...

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  • 2023 Feb 23

    ITC Luncheon

    12:30pm to 1:30pm

    Location: 

    Phillips and streamed: https://youtu.be/eeTjz9QVfEg

    Scott Kenyon (CfA), “Dust as a Solar Shield

    Andreas Burkert (Munich), “Planet formation in turbulent molecular filaments”

    Jea Adams (Harvard), “Optimization Techniques for Exoplanet Direct Imaging

    ...

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  • 2023 Feb 23

    ITC Colloquium - James Stone (Princeton)

    11:00am to 12:00pm

    Location: 

    Phillips
    "First applications with a new performance-portable version of Athena++"

     

    The installation of several exascale computing systems this year has enabled new applications in computational astrophysical fluid dynamics that were previously intractable.  However, to exploit such systems the underlying application software must be able to run efficiently on heterogeneous architectures such as GPU clusters. I will describe a re-write of the Athena++ adaptive mesh refinement code using the Kokkos library that enables applications on ...

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  • 2023 Feb 16

    ITC Colloquium - Shazrene Mohamed (UMiami/SAAO/UCT)

    11:00am to 12:00pm

    Location: 

    Phillips

    "Hidden gems in the circumstellar envelopes of evolved stars"

    As stars approach the end of their lives, they lose large amounts of mass, energy, and momentum through powerful stellar winds and outbursts. The ejection of these outflows has a profound impact on the star and its surroundings; thus, understanding it is crucial for both stellar and galactic evolution models. Indeed, the circumstellar environments of evolved stars are a tapestry of intricate structures, often adorned with shells, clumps, arcs, disks, jets and spirals. Detailed, multi-dimensional simulations together...

    Read more about ITC Colloquium - Shazrene Mohamed (UMiami/SAAO/UCT)

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