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Changing look: from Compton-thick to Compton-thin, or the rebirth of fossil active galactic nuclei |
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| Authors: | Giorgio Matt Matteo Guainazzi Roberto Maiolino |
| Institution: | Dipartimento di Fisica, Universitádegli Studi 'Roma Tre', Via della Vasca Navale 84, I-00146 Roma, Italy;XMM Science Operation Centre, RSSD-ESA, VILSPA, Apartado 50727, E-28080 Madrid, Spain;INAF-Osservatorio Astrofisico di Arcetri, Largo Fermi 5, I-50125 Firenze, Italy |
| Abstract: | |
| Keywords: | galaxies: active galaxies: Seyfert X-rays: galaxies |