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

Space Sciences, Technologies and Astrophysics Research (STAR) Institute, Université de Liège, Allée du 6 Août 19c, B5c, 4000 Liège, Belgium
Instituut voor Sterrenkunde, KU Leuven, Celestijnenlaan 200D, bus 2401 3001 Leuven, Belgium
Departamento de Astrofísica, Centro de Astrobiología (CSIC-INTA), Campus ESA-ESAC, Villanueva de la Cañada, 28692 Madrid, Spain
Author to whom correspondence should be addressed.
Galaxies 2018, 6(2), 52;
Received: 2 March 2018 / Revised: 12 April 2018 / Accepted: 13 April 2018 / Published: 27 April 2018
(This article belongs to the Special Issue The Bright Future of Astronomical X-ray Polarimetry)
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. View Full-Text
Keywords: AGN polarization; X-ray polarization; changing-look AGN AGN polarization; X-ray polarization; changing-look AGN
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MDPI and ACS Style

Agís-González, B.; Hutsemékers, D.; Miniutti, G. A Changing-Look AGN to Be Probed by X-ray Polarimetry. Galaxies 2018, 6, 52.

AMA Style

Agís-González B, Hutsemékers D, Miniutti G. A Changing-Look AGN to Be Probed by X-ray Polarimetry. Galaxies. 2018; 6(2):52.

Chicago/Turabian Style

Agís-González, Beatriz; Hutsemékers, Damien; Miniutti, Giovanni. 2018. "A Changing-Look AGN to Be Probed by X-ray Polarimetry" Galaxies 6, no. 2: 52.

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