Cosmic AlchemyIn a variety of earth materials, gold, silver, copper, and uranium are present, wonder why they are there. The key lies in the evolution of stars in the universe. Through various processes from 13.8 billion years ago, various elements in the universe have been created with protons and neutrons. It is a so-called alchemy of the universe. Is considered to occur by nuclear reaction called rapid neutron capture process (r-process), it would not be made only in extreme environments such as supernova explosions of stars, and heavy elements as uranium and lead have been synthesized.
Original paper (with video movie)
- Three-dimensional nuclear chart - understanding nuclear physics and nucleosynthesis in stars, Phsyics Eduaction 49 215(2014)
Review (Japanese and English)
- Outreach Activity: 3-D chart of the nuclides, Notes on Basic Science -Quest for the future, (Advanced Science Research Center, Japan Atomic Energy Agency), Vol. 21, No. 1, 17-19 (2013).
GOTO HOMEPAGE of Hiroyuki Koura