ELFT HÍRADÓ

[somogyi <somogyi.gabor AT wigner.hu>]

Wigner FK RMI Elméleti Osztály Szemináriuma
Tisztelettel meghívjuk


                  Kiss Gábor Gyula
                  (ATOMKI)


"What we can learn about supernovae with particle accelerators"


     címmel tartandó szemináriumára.


Kivonat:



The exponential technical development that took place in the first two 
decades of the 20th century opened up new horizons in astronomy. 
Nowadays, we can detect the gravitational waves (and electromagnetic 
radiation) emitted after the merger of neutron stars and study the 
composition of the very old stars located at the edge of our Galaxy 
[Cov21]. If we associate the information obtained through these 
observations with precise nuclear physics data, we can obtain 
information on the characteristics of astronomical objects, as well as 
the nucleosynthesis processes taking place in them.
The technical development did not leave the instruments of experimental 
nuclear physics untouched either. In the most advanced accelerator 
centres that produce radioactive beams, in some cases, nuclei created 
during explosive nucleosynthesis processes can be produced, their 
properties and decay methods can be examined, and thus we can gain 
insight into nucleosynthesis processes [Kis22].
However, we don't need to travel to, for example, Japan if we want to 
study such processes experimentally! The combination of research 
infrastructures available in Hungary, i.e. at the Atomki and Wigner 
research institutes, offers a unique opportunity to study the reactions 
playing key role in the synthesis of neutron-rich nuclei found between 
strontium and silver. In my presentation, I would like to present three 
measurements carried out using different techniques (partly in 
progress), through which it is possible to obtain information about the 
characteristics of the material ejected during the supernova explosion 
and the nucleosynthesis process taking place [Kis21, Sze22, Psa22].



[Cov21] J. J. Cowan et al., Rev. Mod. Phys. 93 (2021) 015002
[Kis21] G. G. Kiss et al., Astrophysical J. 908 (2021) 202
[Kis22] G. G. Kiss et al., Astrophysical J. 936 (2022) 107
[Psa22] A. Psaltis et al., Astrophysical J.  935 (2022) 27
[Sze22] T. N. Szegedi et al., Phys. Rev. C 100 (2021) 035804



Helye: Wigner FK RMI III. ép. Tanácsterem
Ideje: 2023 március 17 péntek  d.u. 14 óra

Szívesen látunk minden érdeklődőt.


                             Somogyi Gábor