Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Statut Confirmé
Domaines astro-ph
Date Mercredi 1 Avril 2020
Heure 11:00
Institut LPENS
Salle L369
Nom de l'orateur Delvecchio
Prenom de l'orateur Ivan
Addresse email de l'orateur
Institution de l'orateur CEA Saclay
Titre Do supermassive black holes and galaxies evolve in lockstep?
Résumé Supermassive black holes (SMBHs) are tightly correlated with their hosts, but the origin of such connection remains elusive. First, I will briefly overview the state-of-the-art of SMBHs-galaxy evolution, highlighting the most debated issues of the field. Later, I will present an empirically-motivated toy model that tracks galaxy and SMBH growth since z~10 down to z=0. An intriguing result is that SMBHs and galaxies do not seem to evolve in lockstep at all times, contrary to the common idea of co-evolution. Nevertheless, this study is well supported by recent observations and simulations. Moreover, our modeling naturally explains the anti- hierarchical behaviour of galaxy and SMBHs, the dearth of low-mass BHs and the assembly of local scaling relations at z~0. Last but not least, I will discuss some exciting prospects of the field with new upcoming facilities.
Numéro de preprint arXiv
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