AGN spectral states from simultaneous UV and X-ray observations by XMM-Newton

0484703 - ASÚ 2018 RIV FR eng J - Článek v odborném periodiku
Svoboda, Jiří - Guainazzi, M. - Merloni, A.
AGN spectral states from simultaneous UV and X-ray observations by XMM-Newton.
Astronomy & Astrophysics. Roč. 603, July (2017), A127/1-A127/13. ISSN 0004-6361. E-ISSN 1432-0746
Grant CEP: GA ČR(CZ) GP14-20970P; GA MŠMT(CZ) 7E13012
GRANT EU: European Commission(XE) 312789 - STRONGGRAVITY
Institucionální podpora: RVO:67985815
Klíčová slova: black hole physics * accretion disks * galaxies nuclei
Obor OECD: Astronomy (including astrophysics,space science)
Impakt faktor: 5.565, rok: 2017

While XRBs evolve rapidly and several sources have undergone a few complete cycles from quiescence to an outburst and back, most AGN remain in the same state over periods of years and decades, due to their longer characteristic timescale proportional to their size. However, the study of the AGN spectral states is still possible with a large sample of sources. Multi-wavelength observations are needed for this purpose since the AGN thermal disc emission dominates in the ultraviolet energy range, while the up-scattered hot-corona emission is detected in X-rays.

Trvalý link: http://hdl.handle.net/11104/0279837