[astroseminar at Sapienza] Fwd: seminario di G. Fragione martedi 24/5/2023 ore 16 aula Conversi

[Roberto Capuzzodolcetta]

Reminder del seminario di domani mercoledi 24 maggio:(notare il nuovo link
allo zoom):

Mercoledi prossimo 24 maggio alle ore 16 in aula Conversi  dell'ed. G.
Marconi (Dip. di Fisica) *Giacomo Fragione (CIERA Fellow, Northwestern
University, Evanston, USA) * terrà il seminario (
https://agenda.infn.it/event/34929/) dal titolo:

*Hierarchical Black Hole Mergers: A Multi-Band Opportunity for
Gravitational Waves*

*Abstract*
With about a hundred binary black hole (BBH) mergers detected via
gravitational wave emission, our understanding of the darkest objects in
the Universe has seen unparalleled steps forward compared to previous
decades. While most of the events are expected to consist of
first-generation BHs formed from the collapse of massive stars, others
might be of a second or higher generation, containing the remnants of
previous BH mergers. A fundamental limit for hierarchical mergers comes
from the recoil kick imparted to merger remnants, which could result in the
ejection from the host star cluster. However, hierarchical mergers can
build up massive BHs and even form intermediate-mass black holes if the
host cluster is massive and dense enough, as in nuclear star clusters and
the most massive globular clusters. With their distinctive signatures of
higher masses and spins, hierarchical mergers offer an unprecedented
opportunity to learn about the densest systems in our Universe and to shed
light on the elusive population of intermediate-mass black holes. The next
years may bring hundreds of detections from hierarchical mergers with
multi-band events chirping from space-based to ground-based detectors,
promising a spectacular range of new science from stellar evolution to
cosmology.

link al seminario:
https://uniroma1.zoom.us/j/87038625161?pwd=cEtGRjZNT2VWSlJIWmxaYmxSMDhRZz09#success


-- 

Roberto CAPUZZO DOLCETTA  Roberto.Capuzzodolcetta at uniroma1.it
Dipartimento di Fisica, Universita' di Roma La Sapienza
P.le A.Moro 5, I-00185, Roma, Italy
phone: 39-06-49914535 fax:
39-06-4957697https://sites.google.com/a/uniroma1.it/robertocapuzzodolcetta-eng

My Springer book http://www.springer.com/978-3-030-25846-7

-- 
**Fai crescere le giovani ricercatrici e i giovani ricercatori*

**con il 5 
per mille alla Sapienza
*Scrivi il codice fiscale dell'Università 
*80209930587
Cinque per mille <https://www.uniroma1.it/it/node/23149>*





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