Past Events

  • 2017 Nov 09

    ITC Colloquium 11/9 - Kathryn Johnston (Columbia)

    11:00am to 12:00pm

    Location: 

    Pratt

    "Disk heating, Galasctoseiemology and the Formation of Stellar Halos"

    Abstract:  Deep photometric surveys of the Milky Way have revealed diffuse structures encircling our Galaxy far beyond the ``classical'' limits of the stellar disk. This talk reviews results from observational programs which together suggest that, despite their extreme positions, the stars in these structures were formed in our Galactic disk. It also presents new simulations that illustrate the conditions necessary to explain their origin. There are multiple interesting implications of...

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  • 2017 Nov 08

    ITC Special Seminar - Jason Dexter (MPE)

    2:00pm to 3:00pm

    Location: 

    Phillips
    "A new era for optical interferometry with VLTI GRAVITY"

    Abstract:  The second generation instrument GRAVITY uses phase-referencing to achieve a > 100x improvement in sensitivity when combining the 4 8m telescopes at the VLTI. I will discuss science cases and early consortium results in the areas of X-ray binaries, AGN central engines, and the Galactic center that are now possible with sub-milliarcsecond near-infrared interferometry.

  • 2017 Nov 02

    ITC Luncheon

    12:30pm to 1:30pm

    Location: 

    Phillips Auditorium

    * Antonija Oklopcic (ITC): "Spectral Signatures of Raman Scattering in Exoplanet Atmospheres"

    * Dominik Riechers (Cornell): "Tomography of Cosmic Reionization Through [CII] Intensity Mapping at Redshifts 3.5-9 with CCAT-prime"

    * Eric Coughlin (Berkeley): "General Relativistic Simulations of Disk Formation in Tidal Disruption Events"

    * Vicente Rodriguez-Gomez (JHU): "The Role of Mergers and Halo Spin in Shaping Galaxy Morphology"

  • 2017 Nov 02

    ITC Colloquium Eric Coughlin (Berkeley)

    11:00am to 12:00pm

    Location: 

    Pratt
    "Failed Supernovae Unfailed"

    Abstract: During the core collapse of a massive star, the formation of the protoneutron star is accompanied by the emission of a significant amount of mass-energy (a few tenths of a Solar mass) in the form of neutrinos. This mass loss generates an outward-propagating pressure wave that steepens into a shock near the stellar surface, potentially powering a weak transient if the core collapse itself does not produce a successful supernovae. I will discuss a general formalism for analyzing this mass-loss-induced shock formation in otherwise-failed...

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  • 2017 Oct 26

    ITC Luncheon

    12:30pm to 1:30pm

    Location: 

    Phillips Auditorium
    * David Michael Hernandez (MIT): “Reliable N-body Dynamics in Astrophysics”
    * Hilke Schlichting (UCLA): "Using Ice and Dust Lines to Unveil the Surface Densities of Protoplanetary Disks"
    * Gurtina Besla (Univ. of Arizona) "Chemical Signatures of Pop III stars in Local Ultra Faint Dwarf Galaxies"
    * Francesco Belfiore (UCSC): " How to Regulate and Quench Star Formation: Insights from the MaNGA Survey "
  • 2017 Oct 26

    10/26 ITC Colloquium - Hilke Schlichting (UCLA)

    11:00am to 12:00pm

    Location: 

    Pratt

    "Formation of super-Earths"

    Abstract: Recent observations by the Kepler space telescope have led to the discovery of more than 4000 exoplanet candidates consisting of many systems with Earth- to Neptune-sized objects that reside well inside the orbit of Mercury, around their respective host stars. How and where these close-in planets formed is one of the major unanswered questions in planet formation. I will present new results that self-consistently treat the nebular gas accretion onto rocky cores and the subsequent evolution of gas envelopes due to cooling and photo-...

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