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Pré-Publication, Document De Travail Année : 2013

The Hot and Energetic Universe: The close environments of supermassive black holes

Michal Dovciak
Giorgio Matt
Stefano Bianchi
  • Fonction : Auteur
Thomas Boller
  • Fonction : Auteur
Laura Brenneman
  • Fonction : Auteur
Michal Bursa
  • Fonction : Auteur
Antonino d'Ai
  • Fonction : Auteur
Tiziana Di Salvo
  • Fonction : Auteur
Barbara de Marco
  • Fonction : Auteur
Vladimir Karas
Kazushi Iwasawa
  • Fonction : Auteur
Erin Kara
  • Fonction : Auteur
Jon Miller
  • Fonction : Auteur
Giovanni Miniutti
  • Fonction : Auteur
Iossif Papadakis
  • Fonction : Auteur
Pierre-Olivier Petrucci,
Gabriele Ponti
  • Fonction : Auteur
Guido Reynolds
  • Fonction : Auteur
Agata Rozanska
  • Fonction : Auteur
Luca Zampieri,
  • Fonction : Auteur
Andreas Zezas,
  • Fonction : Auteur
Andrew Young
  • Fonction : Auteur
Chris Risaliti
  • Fonction : Auteur

Résumé

Most of the action in Active Galactic Nuclei (AGN) occurs within a few tens of gravitational radii from the supermassive black hole, where matter in the accretion disk may lose up to almost half of its energy with a copious production of X-rays, emitted via Comptonization of the disk photons by hot electrons in a corona and partly reflected by the accretion disk. Thanks to its large effective area and excellent energy resolution, Athena+ contributions in the understanding of the physics of accretion in AGN will be fundamental - and unique - in many respects. It will allow us to map the disk-corona system - which is crucial to understand the mechanism of energy extraction and the relation of the corona with winds and jets - by studying the time lags between reflected and primary photons. These lags have been recently discovered by XMM-Newton, but only Athena+ will have the sensitivity required to fully exploit this technique. Athena+ will also be able e.g. to determine robustly the spin of the black hole in nearby sources (and to extend these measurements beyond the local Universe), to establish the nature of the soft X-ray components, and to map the circumnuclear matter within the AGN inner parsec with unprecedented details.

Dates et versions

hal-02326949 , version 1 (22-10-2019)

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Michal Dovciak, Giorgio Matt, Stefano Bianchi, Thomas Boller, Laura Brenneman, et al.. The Hot and Energetic Universe: The close environments of supermassive black holes. 2013. ⟨hal-02326949⟩
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