The many tones of accretion - to the memory of Tomaso Belloni

Session

Beyond Stellar-Mass BHs & New Windows. Session 4.1: AGN

10 Sept 2026, 10:00

Cefalù

79. AGN high energy emission: highlights from selected space missions.

Andrea Comastri (Istituto Nazionale di Astrofisica (INAF))

10/09/2026, 10:00

Talk

Deep JWST surveys have revolutionized our knowledge of the formation and early evolution of Active Galactic Nuclei at the cosmic dawn.
Webb uncovered a large population of compact Broad Lined AGN with moderate luminosities, log LBOL ~ 42-45, high redshifts, z > 4, and black holes’ inferred masses 106-8 MSUN. A subclass exhibits red, V-shaped UV-optical continua and is commonly classified as...

88. Circumbinary accretion onto Supermassive Black hole Binaries with the presence of a Dark Matter Spike

Edwin Santiago (Instituto Nacional de Astrofísica, Óptica y Electrónica)

10/09/2026, 10:30

Talk

Since the Laser Interferometer Space Antenna (LISA) project was announced, interest in binary systems of supermassive black holes (SMBHBs) has grown, as it is expected that these systems will be observable with this instrument. In particular, efforts have been made to produce realistic simulations of SMBHBs surrounded by a circumbinary disk (CD), since this specific scenario could be the...