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NBIA Workshop on Radiation Transfer in Astrophysics

6–10 Jun 2022
Europe/Copenhagen timezone

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Session

TIdal Disruption Events

9 Jun 2022, 13:30

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  1. 39. Modeling disks and emissions of tidal disruption events
    Jane Dai (The University of Hong Kong)
    09/06/2022, 13:30
    TIdal Disruption Events
    Talk

    Tidal disruption events, in which stars are torn apart by massive black holes, are ideal laboratories for studying the accretion and emission physics around black holes. In this talk, we will show some of our recent general relativistic magnetohydrodynamic simulations of super-Eddington disks formed in tidal disruptions and their spectra obtained via Monte Carlo radiative transfer codes. We...

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  2. 40. Eccentric tidal disruption event discs around supermassive black holes: dynamics and thermal emission
    John Zanazzi (Canadian Institute for Theoretical Astrophysics)
    09/06/2022, 13:50
    TIdal Disruption Events
    Talk

    After the tidal disruption event (TDE) of a star around a supermassive black hole (SMBH), if the stellar debris stream rapidly circularizes and forms a compact disc, the TDE emission is expected to peak in the soft X-ray or far ultraviolet (UV). The fact that many TDE candidates are observed to peak in the near UV and optical has challenged conventional TDE emission models. By idealizing a...

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  3. 44. The origin of TDE emission
    Elad Steinberg (Hebrew University of Jerusalem)
    09/06/2022, 14:10
    TIdal Disruption Events
    Talk

    We present, for the first time, a fully self-consistent radiation hydrodynamic simulation of a realistic tidal disruption event (TDE). TDEs are highly luminous, multiwavelength astrophysical transients that carry great promise for measuring the properties of supermassive black holes, but the complex physics and large dynamic range of the problem has until now prevented self-consistent...

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  4. 90. First light from tidal disruption events
    Clément Bonnerot
    09/06/2022, 15:30
    TIdal Disruption Events

    When a star comes too close to a supermassive black hole, it gets torn apart by strong tidal forces in a tidal disruption event. The emitted signal represents a powerful probe of these compact objects, the large majority being otherwise starved of gas and therefore undetectable. Exploiting this potential requires a precise characterization of the electromagnetic signatures from these phenomena...

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  5. 89. High-energy neutrino emission associated with tidal disruption events
    Kimitake Hayasaki
    09/06/2022, 15:50
    TIdal Disruption Events
  6. 83. Spectral modeling of flares following tidal disruptions of stars by supermassive black holes
    Nathaniel Roth (Lawrence Livermore National Laboratory, USA)
    09/06/2022, 16:10
    TIdal Disruption Events
    Talk

    A wealth of spectral data now exists for the flares that follow the tidal disruptions of stars by supermassive black holes, over a wide range of wavelengths. The information encoded in these spectra will be essential to uncovering the dynamical process by which the disruption unfolds and the radiation is generated, which remains intensely debated. However, the theoretical interpretation of...

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