Quinto Incontro Nazionale di Fisica Nucleare INFN 2022

Session

Astrofisica nucleare I

May 9, 2022, 9:00 AM

Auditorium "E. Fermi" (LNGS)

74. Welcome speech

5/9/22, 9:00 AM

6. Nuclear Physics and neutron stars observations: probing the dense matter equation of state

Dr Giuseppina Fiorella Burgio (INFN Sezione di Catania)

5/9/22, 9:15 AM

I will review the recent developments in the construction of the Equation of State of hot and dense matter and its application to the merger observations, which have become recently a fundamental tool to constrain the properties of matter. I will make a survey of all results obtained by Italian groups, and discuss open questions and issues in the field.

59. Beyond Iron peak: focus trasversale sulle sorgenti di neutroni $^{13}$C($\alpha$,n) e $^{22}$Ne($\alpha$,n), e sulla $^{12}$C+$^{12}$C

Cristian Massimi (Istituto Nazionale di Fisica Nucleare)

5/9/22, 9:45 AM

Da anni gli esperimenti INFN che si interessano di Astrofisica Nucleare studiano le reazioni nucleari legate ai processi di nucleosintesi che avvengono nelle stelle. A causa delle evidenti difficoltà sperimentali che si pongono nella misura di sezioni d'urto estremamente piccole con risonanze, negli anni sono stati proposti e sviluppati diversi approcci per affrontare esperimenti tanto...

46. Was GW190814 a Black Hole–Strange Quark Star System?

Domenico Logoteta (Istituto Nazionale di Fisica Nucleare)

5/9/22, 10:15 AM

I investigate the possibility that the low mass companion of the black hole in the source of GW190814 was a strange quark star. This possibility is viable within the so-called two-families scenario in which neutron stars and strange quark stars coexist. Strange quark stars can reach the mass range indicated by GW190814, M ∼(2.5–2.67)  M_sun. Neutron stars (actually hyperonic stars in the...

61. Numerical and experimental investigations on compact binary ejecta plasma opacity relevant for kilonova transient signals

Dr Angelo Pidatella (Istituto Nazionale di Fisica Nucleare - Laboratori Nazionali del Sud)

5/9/22, 10:35 AM

Joint observations of gravitational-wave (GW) event to compact binary objects mergers, and of their electromagnetic counterpart, known as kilonova (KN) can provide a new avenue in the framework of the multi-messenger astronomy to constrain the astrophysical origin of the r-process elements and the equation of state of dense nuclear matter [1]. Coalescence of double neutron star releases...