Past Events

  • 2017 Oct 05

    10/5 ITC Colloquium - Paul Duffell (Berkeley)

    11:00am to 12:00pm

    Location: 

    Pratt

    "Moving Mesh Astrophysics"

    Abstract: Novel methods in recent years have been developed for numerically solving the hydrodynamical and MHD equations relevant to all kinds of astrophysical flows. I will first (briefly) present one such computational technique, where the numerical grid follows the MHD flow using a "moving mesh". I will then present some astrophysical scenarios for which I have applied this method, including planet formation and high-energy transients such as supernovae and gamma ray bursts.

  • 2017 Oct 03

    10/3 ITC Seminar - Saavik Ford (AMNH / CUNY)

    12:00pm to 1:00pm

    Location: 

    Phillips Auditorium

    "The AGN Channel For LIGO Black Hole Binary Mergers"

    Abstract: I will present a model for stellar mass black hole binary (BHB) mergers accelerated by an active galactic nucleus (AGN) accretion disk. This model predicted the existence of overweight' stellar mass BHB mergers, detectable by LIGO (McKernan, Ford, et al. 2014). In more recent work, we find the rate of BHB merger by this channel can span the range 1e-4-1e3 Gpc^-3 yr^-1, depending on a variety of poorly constrained astrophysical parameters. Thus, with LIGO's measured rates (12-213 Gpc^-3 yr^-1), we can already...

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  • 2017 Sep 28

    ITC Luncheon

    12:30pm to 1:30pm

    Location: 

    Phillips Auditorium
    * Atish Kamble (CfA): "Radio Supernova 2016coi and the GRB-SN Connection."
    * Anna Frebel (MIT) : ""Evidence for a Jet-Like Explosion of a First Star""
    * Anna Rosen (ITC): "An Unstable Truth: How Massive Stars get...
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  • 2017 Sep 28

    ITC Colloquium Merav Opher (Boston U)

    11:00am to 12:00pm

    Location: 

    Pratt

    "New View of Heliosphere: “Heliosphere with Jets”; Turbulence; Reconnection – lessons learned from Voyager, Cassini, IBEX, TeV Cosmic Rays about our home in the galaxy"

    Abstract:  In this talk, I will discuss what did we recently learned from the in-situ measurements from Voyager spacecrafts as well as the remote sensing of energetic neutral atoms from CASSINI, IBEX and the anisotropy of TeV cosmic rays about the heliosphere. The heliosphere is the only local example of astrosphere that can be probed in such details. The very shape of the heliosphere is being...

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  • 2017 Sep 21

    ITC Luncheon

    12:30pm to 1:30pm

    Location: 

    Phillips Auditorium

     

    Guido Risaliti (Arcetri): "X-ray spectroscopy of AGNs: can we really measure black hole spins?"

    Manasvi Lingam (ITC): "Impact and Mitigation Strategy for Future Solar Flares"

    Emily Rauscher (UMich): "Creating the Perfect Map of an Exoplanet"

    Hsin-Yu Chen (BHI): "Advanced LIGO-Virgo observing scenario and localization"

     

  • 2017 Sep 19

    9/19 ITC Seminar - Mattia di Mauro (Stanford)

    12:00pm to 1:00pm

    Location: 

    Phillips Auditorium

    "Characterizing the population of pulsars in the Galactic bulge with the Fermi Large Area Telescope"
     

    ABSTRACT: Several groups have demonstrated the existence of an excess in the gamma-ray emission around the Galactic Center (GC) with respect to the predictions from a variety of Galactic Interstellar Emission Models (GIEMs) and point source catalogs. The origin of this excess, peaked at a few GeV, is still under debate. A possible interpretation is that it comes from a population of unresolved Millisecond Pulsars (MSPs) in the Galactic bulge. We investigate the...

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