Past Events

  • 2017 Oct 19

    ITC Luncheon: Special 1.5 hour edition featuring LIGO discussion

    12:30pm to 2:00pm

    Location: 

    Phillips Auditorium

    * Hsin-Yu Chen (BHI): “Exciting News from Advanced LIGO-Virgo”

    * Matt Nicholl, Phil Cowperthwaite, and Kate Alexander (CfA): special discussion on LIGO results.

    * Avishai Dekel (JHU): “On the Origin of Ultra Diffuse Galaxies”

    * Dan Hooper (Fermilab): TBD * Richard Bower (Durham University): "The Impact of Lambda"

    * Lluis Mas (ITA, Oslo): "Diffuse Emission Halos as a Probe of Galaxy and Reionization Physics"

  • 2017 Oct 19

    10/19 ITC Colloquium - Avishai Dekel (Hebrew Univ, Jerusalem)

    11:00am to 12:00pm

    Location: 

    Pratt

    "The Magic Scale of Galaxies"

    Abstract:  This talk will address the preferred mass and time for galaxy formation, in dark-matter haloes similar to that of the Milky way but when the Universe was a few Gigayears old. It is proposed that this is due to the interplay between two mechanisms, first supernova feedback that removes gas from the galaxy, and second hot gas in the deep potential well of massive haloes that suppresses cold gas supply to the galaxy, the two being effective in galaxies of lower and higher masses respectively....

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  • 2017 Oct 12

    ITC Colloquium Mark Voit (MSU) NOTE TIME AND PLACE!!!!!

    3:00pm to 4:00pm

    Location: 

    Phillips Auditorium
    Title:  Circumgalactic Precipitation

    Feedback from a central supermassive black hole is an essential component of galaxy evolution models. Without it, those models cannot produce realistic massive galaxies and galaxy clusters. However, the black-hole feedback mechanism remains mysterious. Somehow, accretion of matter onto the central black hole of a massive galaxy becomes precisely tuned so that it regulates radiative cooling and condensation of gas in a volume many orders of magnitude larger than the black-hole's gravitational zone of influence. I will discuss how the required... Read more about ITC Colloquium Mark Voit (MSU) NOTE TIME AND PLACE!!!!!
  • 2017 Oct 12

    ITC Luncheon IN PRATT!!!!!!

    12:30pm to 1:30pm

    Location: 

    Pratt

    * Julian B. Munoz (Harvard): "Large-Distance Lens Uncertainties and Time-Delay Measurements of H0"

    * Mark Voit (MSU): “Circumgalactoseismology”

    * Sivan Ginzburg (Hebrew University): "Core-powered Valley: The Radius Distribution of Small Planets" 

    * Shmuel Bialy (TAU): TBD

  • 2017 Oct 05

    ITC Luncheon

    12:30pm to 1:30pm

    Location: 

    Phillips Auditorium

    * Nia Imara (CfA): "Searching for Exoplanets Around X-Ray Binaries"

    * Paul Duffell (Berkeley): "1D Modeling of Rayleigh-Taylor Instability in Supernovae"

    * Or Graur (CfA): "The Compact Homes of Tidal...

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  • 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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