S-process in low-mass extremely metal-poor stars
We present post-processing s-process calculations for the core He-flash of a 1Mstar with and Z = 10 −8 . Our model shows neutron densities larger than 10 14 cm −3 , resulting in the production of s-process elements. The model reproduces the C, O, Sr, and Ba abundances of the star hyper metal-poor star HE0107- 5240 within a factor of 4.