The 1st IReNA-Ukakuren Joint Workshop “Advancing Professional Development in Nuclear Astrophysics and Beyond”

Session

Multi-Messenger Astronomy and Astrophysics

29 Aug 2023, 14:10

Large Seminar Room (Subaru Building) (NAOJ (National Astronomical Observatory of Japan))

Conveners

Multi-Messenger Astronomy and Astrophysics: Afternoon - 1

• Erika Holmbeck (Observatories of the Carnegie Institution for Science)

Multi-Messenger Astronomy and Astrophysics: Morning - 1

• Eiji Kido (Astrophysical Big Bang Laboratory, RIKEN)

57. Signatures of r-process elements in optical-infrared spectra of neutron star mergers

Nanae Domoto (Tohoku University)

29/08/2023, 14:10

Invited talk

Binary neutron star (NS) merger is a promising site for the rapid neutron capture nucleosynthesis (r-process). The radioactive decay of newly synthesized elements powers electromagnetic radiation, as called kilonova. The detection of gravitational wave from a NS merger GW170817 and the observation of the associated kilonova AT2017gfo have provided with us the evidence that r-process happens in...

8. Light curve of electron capture and Fe core collapse supernova: The diagnostic method of electron capture supernova

Masato Sato (The Graduate University for Advanced Studies, SOKENDAI)

29/08/2023, 14:50

Talk

Stars of 8-10 M⊙ are theoretically considered to become Super Asymptotic Giant Branch (SAGB), and explode as electron capture supernovae (ECSNe). However, there are no observation which is clearly identified as an ECSN. Although SN1054 (Crab Nebula) is considered to be an ECSN, we could hardly know its explosion as detail as modern observation. SN2018zd is a controversial object. Although it...

26. Supernova neutrino signals as indicators of neutrino mass ordering

Maria Manuela Saez

29/08/2023, 15:20

Talk

Supernovae events are one the most powerful cosmic sources of neutrinos with energies of several MeV. The emission of neutrinos and antineutrinos of all flavors carries away the gravitational binding energy of the compact remnant and drives its evolution from the hot initial to the cold final state. I will briefly describe how to detect these neutrinos from Earth, and how to use these data to...

40. Heavy Element Nucleosynthesis in the Multi-Messenger Era

Erika Holmbeck (Observatories of the Carnegie Institution for Science)

31/08/2023, 09:30

Invited talk

Neutron star mergers (NSMs) have been confirmed as one of the production sites of the heaviest elements. Studying post-NSM signals in the electromagnetic spectrum is invaluable for understanding the production of these elements, especially with the LIGO Scientific Collaboration having begun its next observing run. However, with the current low detection rates of post-merger light curves, we...

15. Long term simulation of supernovae for multi-messenger astronomy

Masamitsu Mori (National Astronomical Observatory of Japan)

31/08/2023, 10:10

Talk

A star more than eight times the mass of the sun undergoes a massive explosion called a supernova at the end of its life. Supernova explosions, including the emission of neutrinos, gravitational waves, and beyond SM particles, are ideal targets for multi-messenger astronomy. One issue in the study of supernova explosions is that research has mainly focused on the first second of the explosion....