Séminaire IPAG

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X-ray reflection from the vicinity of black holes

jeudi 2 mars 2023 - 11h00

Thomas Dauser - Remeis-Observatory & ECAP, FAU Erlangen-Nürnberg
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The emission of X-ray photons from the innermost regions of the accretion disk around black holes is strongly affected by strong gravity effects. These effects are imprinted on the X-ray spectra of such sources. Detailed modeling employing General Relativistic ray-tracing allows to constrain characteristic parameters of the system such as the spin of the black hole or the location of the primary source of X-rays. I will present a more self-consistent approach to model these so-called relativistic reflection features, show applications of the model to high-resolution spectra of currently operating X-ray missions and highlight the prospects for the next generation of telescopes.

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Hôtes : Pierre-Olivier Petrucci

Salle Manuel Forestini, 414 rue de la piscine, 38400 Saint Martin d'Hères