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Relativistic Fluids around Compact Objects

5–9 May 2025
CAMK
Europe/Warsaw timezone

Session

Wednesday morning

7 May 2025, 09:30
Lecture Room (CAMK)

Lecture Room

CAMK

Bartycka 18

Conveners

Wednesday morning

  • Krzysztof Nalewajko (Nicolaus Copernicus Astronomical Center, PAS, Warsaw, Poland)

Wednesday morning

  • Krzysztof Nalewajko (Nicolaus Copernicus Astronomical Center, PAS, Warsaw, Poland)

Presentation materials

There are no materials yet.

  1. 51. Beyond the Kerr Black Hole-Torus paradigm
    Hector Raul Olivares Sánchez (Universidade de Aveiro)
    07/05/2025, 09:30
    Numerical simulations
    Review talk

    Developments in observing technology have produced the first event-horizon-scale images of accreting supermassive black holes. The interpretation of such observations relies on sizable libraries of synthetic data produced from general-relativistic magnetohydrodynamic (GRMHD) simulations. This approach has provided considerable insight into these systems, but also suffers from some limitations....

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  2. 12. Magnetospheres, jets and pulsed emission from compact objects
    Oliver Porth (Anton Pannekoek Institute for Astronomy, University of Amsterdam)
    07/05/2025, 10:00
    Compact stars
    Review talk

    The time-variable (in particular pulsed-) emission from black holes and neutron stars holds key information on the nature of curved spacetime and ultra dense nuclear matter. However, due to the complex plasma dynamics at play, the interpretation of the observed signals is difficult. I will present some recent work on modeling general relativistic magnetohydrodynamic processes around black...

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  3. 27. Radiative GRMHD simulations of sub-Eddington accretion: the Puffy disc
    Debora Lančová
    07/05/2025, 10:30
    Accretion
    Standard talk

    A widely accepted picture of an accretion flow in the luminous soft spectral state of X-ray binary systems is a geometrically thin disc structure much like the classic analytic thin disc model of Shakura & Sunyaev. Although the analytic models are troubled by instabilities, they are successfully used to interpret observational data. I will present the results of general relativistic radiative...

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  4. 31. GRMHD simulations of accretion disks: QPOs, truncated disks and QPOs from truncated disks
    Gibwa Musoke (Canadian Institute for Theoretical Astrophysics)
    07/05/2025, 12:15
    Numerical simulations
    Review talk

    Black hole X-ray binaries (BHXRBs) and Active Galactic Nuclei (AGN) transition through a series of accretion states in a well-defined order. The accretion states, each associated with different luminosities, spectral and variability characteristics, quasi periodic oscillations (QPOs) and outflow properties, are thought to be triggered by physical changes in the accretion disk around the...

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