Direct probe of the inner accretion flow around the supermassive black hole in NGC 2617

0484708 - ASÚ 2018 RIV FR eng J - Článek v odborném periodiku
Giustini, M. - Costantini, E. - De Marco, B. - Svoboda, Jiří - Motta, S. E. - Proga, D. - Saxton, R. - Ferrigno, C. - Longinotti, A. L. - Miniutti, G. - Grupe, D. - Mathur, S. - Shappee, B. J. - Prieto, J. L. - Stanek, K.
Direct probe of the inner accretion flow around the supermassive black hole in NGC 2617.
Astronomy & Astrophysics. Roč. 597, January (2017), A66/1-A66/13. ISSN 0004-6361. E-ISSN 1432-0746
Grant CEP: GA ČR(CZ) GP14-20970P; GA MŠMT(CZ) LH14049
Institucionální podpora: RVO:67985815
Klíčová slova: black hole physics * observational methods * active galaxies
Obor OECD: Astronomy (including astrophysics,space science)
Impakt faktor: 5.565, rok: 2017

NGC2617 is a nearby (z similar to 0 : 01) active galaxy that recently switched from being a Seyfert 1.8 to be a Seyfert 1.0. At the same time, it underwent a strong increase of X-ray flux by one order of magnitude with respect to archival measurements. We characterise the X-ray spectral and timing properties of NGC2617 with the aim of studying the physics of a changing-look active galactic nucleus (AGN).
We performed a comprehensive timing and spectral analysis of two XMM-Newton pointed observations spaced by one month, complemented by archival quasi-simultaneous INTEGRAL observations.
Trvalý link: http://hdl.handle.net/11104/0279841