All-Moscow Seminar of Astrophysicists
(ASA)
The seminar is supported by the grant of Federal Programm "Integration"
annotation of talk
Panov Igor Vital'evich (ITEP)
"R-process nucleosynthesis of heavy elements"
The present status of r-process theory is discussed:
achgievements in kinetic consideration of the process
and difficulties in understanding of r-process site.
The important question about nature of r-process event - unique
or multi - is discussed.
The original model, where r-process goes on driving by neutrino
pulse from collapsing supernova with mass equal to 10-15 solar
masses, is discussed.
The necessary for nucleosynthesis amount of free neutrons
are emerge due to evaporation of neutrons from helium nuclei excited
by neutrino-nuclear inelastic collisions.
The influence of proton-nuclei and alpha-nuclei reactions on r-process
is analized taking into account the shock-wave propagation.
Here we consider the possibility to obtain sufficient
yields of r-elements in such model, at least in mass-range from
A=80 till A=130.