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  Observations of X-ray reverberation around black holes

Marco, B. D., & Ponti, G. (2019). Observations of X-ray reverberation around black holes. Astronomische Nachrichten, 340(4), 290-295. doi:10.1002/asna.201913612.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0003-B6BE-A Version Permalink: http://hdl.handle.net/21.11116/0000-0003-B6BF-9
Genre: Journal Article

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Observations of X-ray reverberation around black holes.pdf (Any fulltext), 538KB
 
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 Creators:
Marco, B. De, Author
Ponti, G.1, Author              
Affiliations:
1High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society, ou_159890              

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 Abstract: The X‐ray emission from accreting black hole (BH) systems displays strong variability. Short reverberation lags are expected between the primary hard X‐ray continuum and the reprocessed disk emission. These lags depend on light‐travel distances, thus offering the opportunity to map the geometry of the innermost accretion flow. X‐ray reverberation lags have been observed in several BH accreting systems. In radio‐quiet active galactic nuclei (AGN), these lags scale with BH mass and point to a reprocessing region located close to the comptonizing X‐ray corona. On the other hand, reverberation lags detected in the hard state of some BH X‐ray binaries (BHXRB) suggest a different accretion flow geometry than in AGN, showing evidence of evolution as a function of luminosity.

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Language(s): eng - English
 Dates: 2019-03-25
 Publication Status: Published online
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 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1002/asna.201913612
Other: LOCALID: 3065463
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Title: Astronomische Nachrichten
  Abbreviation : Astron. Nachr.
  Other : Astronomical Notes
Source Genre: Journal
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Pages: - Volume / Issue: 340 (4) Sequence Number: - Start / End Page: 290 - 295 Identifier: ISSN: 0004-6337
ISSN: 1521-3994