Embedded Files
The Life and Death of Stars: White Dwarfs, Supernovae, Neutron Stars, and Black Holes
Element Abundances
Element Abundances
clip - elements forming (5).WMVThe Insane Celestial Origin of All the Atoms in the Universe?
The Insane Celestial Origin of All the Atoms in the Universe?
Big Bang Nucleosynthesis
Big Bang Nucleosynthesis
Cosmic Ray Spallation
Cosmic Ray Spallation
Stellar Nucleosynthesis
Stellar Nucleosynthesis
proton-proton fusion, the carbon (CNO) cycle & helium fusion
proton-proton fusion, the carbon (CNO) cycle & helium fusion
Process 1: Proton-Proton Fusion
Process 1: Proton-Proton Fusion
This is the nuclear fusion process which fuels the Sun and other stars which have core temperatures less than 15 million Kelvin.
Process 2: The CNO cycle
Process 2: The CNO cycle
In stars with central temperatures greater than 15 million Kelvin, carbon fusion is thought to take over the dominant role rather than hydrogen fusion.
Process 3: Triple Alpha Process
Process 3: Triple Alpha Process
If the central temperature of a star exceeds 100 million Kelvins, as may happen in the later phase of red giants and red super giants, then helium can fuse to form beryllium and then carbon.
The S Process (nuclear decay)
The S Process (nuclear decay)
clip - stardust elements (7).WMVStar Death and the Creation of Elements - Wonders of the Universe: Stardust, preview - BBC Two
Prof Brian Cox how the heavier elements formed
MIT open course: Formation of the Heaviest Elements
Report abuse