중이온가속기 KoRIA와 천체핵물리학

초록

We discuss topics of thermonuclear reactions for unstable nuclei in nuclear astrophysics at KoRIA (Korea Rare Isotopes Accelerator) facility, which will be built in the near future. Various experimental methods with rare isotope beams (RIB) have been proposed for understanding the formation of the elements following fusion reactions and neutron captures inside and on the surfaces of stars: hydrogen-helium burning processes CNO cycle and chains rapid proton capture reactions (rp-process) slow neutron capture reactions (s-process) and rapid neutron capture reactions (rprocess). We give special emphasis to obtaining reaction rates for the reactions that create and destroy long-lived nuclei, such as 22Na, 26Al and 44Ti, that are targets for γ-ray line astronomy. We also focus on the r-process by which neutron-rich nuclei with neutron magic numbers of 82 and 126 are synthesized. Our proposal will lead the way to solving key issues in astrophysics: the structure and evolution of stars (neutron stars, pulsars, and black holes) the generation of energy in stars and the synthesis of the elements in stars the structure and formation of the solar system and our galaxy. The KoRIA facility is anticipated to play a leading role in developing and promoting nuclear astrophysics research around the world.

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