14–16 May 2024
CERN
Europe/Zurich timezone

Timekeepers of the Universe: The recent gravitational wave observation and Primordial black holes

16 May 2024, 11:47
5m
500/1-001 - Main Auditorium (CERN)

500/1-001 - Main Auditorium

CERN

400
Show room on map
gravitational waves Gravitational Waves

Speaker

Antonio Junior Iovino (Università di Roma "La Sapienza")

Description

Primordial black holes (PBHs) are currently in the spotlight as they may solve several open questions in astrophysics and cosmology.
We describe an exact formalism for the computation of the abundance of PBHs in the presence of local non-gaussianity (NG).
Then, we describe the phenomenological relevance of our results for the connection between the abundance of PBHs and the
stochastic gravitational wave (GW) background related to their formation. As NGs modify the amplitude of perturbations necessary to produce a given PBHs abundance, modelling these effects is crucial to connect the PBH scenario to its signatures at current and future GWs experiments such as the recent data release by PTA collaborations

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Primary author

Antonio Junior Iovino (Università di Roma "La Sapienza")

Co-authors

Alfredo Urbano Mrs Gabriele Franciolini Hardi Veermäe (National Institute of Chemical Physics and Biophysics (EE)) Dr Ville Vaskonen

Presentation materials