A Changing-Look AGN to Be Probed by X-ray Polarimetry

Agis-Gonzalez, Beatriz; Hutsemekers, Damien; Miniutti, Giovanni

doi:10.3390/galaxies6020052

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A Changing-Look AGN to Be Probed by X-ray Polarimetry

Agis-Gonzalez, Beatriz; Hutsemekers, Damien; Miniutti, Giovanni

2018 • In Galaxies, 6, p. 52

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https://hdl.handle.net/2268/223616

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10.3390/galaxies6020052

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Keywords :

galaxies; active galactic nuclei

Abstract :

[en] Active galactic nuclei (AGN) produce the highest intrinsic luminosities in the Universe from within a compact region. The central engine is thought to be powered by accretion onto a supermassive black hole. A fraction of this huge release of energy influences the evolution of the host galaxy, and in particular, star formation. Thus, AGN are key astronomical sources not only because they play an important role in the evolution of the Universe, but also because they constitute a laboratory for extreme physics. However, these objects are under the resolution limit of current telescopes. Polarimetry is a unique technique capable of providing us with information on physical AGN structures. The incoming new era of X-ray polarimetry will give us the opportunity to explore the geometry and physical processes taking place in the innermost regions of the accretion disc. Here we exploit this future powerful tool in the particular case of changing-look AGN, which are key for understanding the complexity of AGN physics.

Disciplines :

Space science, astronomy & astrophysics

Author, co-author :

Agis-Gonzalez, Beatriz ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO)

Hutsemekers, Damien ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)

Miniutti, Giovanni

Language :

English

Title :

A Changing-Look AGN to Be Probed by X-ray Polarimetry

Publication date :

01 April 2018

Journal title :

Galaxies

eISSN :

2075-4434

Publisher :

MDPI AG, Basel, Switzerland

Volume :

Pages :

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

http://adsabs.harvard.edu/abs/2018Galax...6...52A

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since 22 May 2018

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