Quid ultra?
Frontiers and Controversies in Astrophysics
Quid Ultra? Frontiers and Controversies in Astrophysics is a series of monthly prestigious colloquia that aims to present to a broad audience of astrophysicists, PhD and master students some of the most controversial topics at the forefront of research by internationally recognized experts.
The topics that will be proposed range from the search for exo-planets and astro-chemical traces of the origin of life, to star formation, in the near and distant Universe; from the astrophysical sources of gravitational waves, to the complex mechanisms that regulate the evolution of galaxies; from the formation of black holes, to the nature of dark matter and energy and their impact on the observable properties of the Universe.
Next Lecture
Pavel Kroupa, Thursday 21th October 2021
Sapienza Università di Roma, Dipartimento di Fisica, 16:30 - 17:30
" The appearance of very high red-shift quasars and the formation of super massive black holes"
University of Bonn and Charles University of Prague
Quasars are found to appear a few hundred Myr after the Big Bang, but pressing matter together into super-massive black holes (SMBHs) so quickly appears to be impossible. At a later stage, the spheroidal component of a galaxy (its bulge if it is not an elliptical galaxy) is observed to show a correlation between its mass and that of the central SMBH it harbours, although spheroids with a mass lower than a few 1E9 Msun appear to only host a nuclear star cluster. I will discuss a theory for the formation of SMBHs which accounts for these observations using standard, non-exotic physics.
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SOC
Lucio Angelo Antonelli (INAF/Osservatorio Astronomico di Roma)
Roberto Capuzzo Dolcetta (Dipartimento di Fisica, Sapienza Università di Roma)
Paolo de Bernardis (Dipartimento di Fisica, Sapienza Università di Roma)
Luca Graziani (Dipartimento di Fisica, Sapienza Università di Roma)
Enzo Pascale (Dipartimento di Fisica, Sapienza Università di Roma)
Raffaella Schneider (Dipartimento di Fisica, Sapienza Università di Roma, chair)
LOC
Flaminia Fortuni (INAF/Osservatorio Astronomico di Roma)
Luca Graziani (Dipartimento di Fisica, Sapienza Università di Roma)
Lorenzo V. Mugnai (Dipartimento di Fisica, Sapienza Università di Roma)
Federico Radiconi (Dipartimento di Fisica, Sapienza Università di Roma)
Federica Sassano (Dipartimento di Fisica, Sapienza Università di Roma)
Alessandro Trinca (Dipartimento di Fisica, Sapienza Università di Roma)
Angela Zegarelli (Dipartimento di Fisica, Sapienza Università di Roma)
Raffaella Schneider (Dipartimento di Fisica, Sapienza Università di Roma, chair)
