Nuclear Cosmochronometer for Supernova Neutrino Process

Authors :: Toshihiko Kawano
Heamin Ko
Masa-aki Hashimoto
Motohiko Kusakabe
Takehito Hayakawa
Masaomi Ono
Alexey Tolstov
Satoshi Chiba
Grant J. Mathews
Myung-Ki Cheoun
Ken'ichi Nomoto
Toshitaka Kajino
Source :: Proceedings of the 15th International Symposium on Origin of Matter and Evolution of Galaxies (OMEG15).
Publication Year :: 2020
Publisher :: Journal of the Physical Society of Japan, 2020.
Abstract: We have proposed a short-lived radioisotope 98Tc as the nuclear cosmochronometer to evaluate the time from the last supernova neutirno-process to the solar system formation (SSF). We have calculated the supernova neutirno-process using a SN 1987A model with neutrino-induced reaction cross sections. The calculated result is consistent with the observed upper limit of 98Tc/98Ru at the SSF.

Subjects :: Physics
Supernova
Astrophysics::High Energy Astrophysical Phenomena
Scientific method
Astrophysics
Neutrino

Database :: OpenAIRE
Journal :: Proceedings of the 15th International Symposium on Origin of Matter and Evolution of Galaxies (OMEG15)
Accession number :: edsair.doi.dedup.....80d92d3943abf06204cfb4b9d4acf8b1
Full Text :: https://doi.org/10.7566/jpscp.31.011028