- #1
- 6,735
- 2,455
Hi!
I have a project where I am supposed to model the s-process in a star in its Helium shell burning region, and i shall do this for a variation of neutron exposure, where neutron exposure are defined as:
[tex] \tau = N* \Delta t [/tex] , t is time. N is number density of neutrons.
So I in principle have calculated everything i need, but what is left is that i don't know the times for different mass of stars where they are in the AGB (asymptotic giant branch), it is in the AGB phase where stars have Helium shell burning outside a C and O burning core. So i must find the time duration of those phases.
I have consulted three textbooks. One is Nuclear Physics of stars by Iliadis, one is Stellar structure and evolution by Prianlik, and one is Modern astrophysics by Caroll.
I have a project where I am supposed to model the s-process in a star in its Helium shell burning region, and i shall do this for a variation of neutron exposure, where neutron exposure are defined as:
[tex] \tau = N* \Delta t [/tex] , t is time. N is number density of neutrons.
So I in principle have calculated everything i need, but what is left is that i don't know the times for different mass of stars where they are in the AGB (asymptotic giant branch), it is in the AGB phase where stars have Helium shell burning outside a C and O burning core. So i must find the time duration of those phases.
I have consulted three textbooks. One is Nuclear Physics of stars by Iliadis, one is Stellar structure and evolution by Prianlik, and one is Modern astrophysics by Caroll.