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Evolution of Urca Pairs in the Crusts of Highly Magnetized Neutron Stars
Michael Famiano, Grant Mathews, A. Baha Balantekin +3
We report on the effects of strong magnetic fields on neutrino emission in the modified Urca process. We show that the effect of Landau levels on the various Urca pairs affects the…
Screening Effects on Electron Capture Rates and Type Ia Supernova Nucleosynthesis
Kanji Mori, Toshio Suzuki, Michio Honma +4
Type Ia supernovae (SNe Ia) are believed to be a thermonuclear explosion of a white dwarf, but the mass of their progenitors is still an open problem. In near-Chandrasekhar-mass (n…
Nuclear Reaction Screening, Weak Interactions, and r-Process Nucleosynthesis in High Magnetic Fields
Michael Famiano, A. Baha Balantekin, Toshitaka Kajino +3
Coulomb screening and weak interactions in a hot, magnetized plasma are investigated. Coulomb screening is evaluated in a relativistic thermal plasma in which electrons and positro…
Current Status of r-Process Nucleosynthesis
T. Kajino, W. Aoki, A. B. Balantekin +3
The rapid neutron capture process (r process) is believed to be responsible for about half of the production of the elements heavier than iron and contributes to abundances of some…
Impacts of the New Carbon Fusion Cross Sections on Type Ia Supernovae
Kanji Mori, Michael A. Famiano, Toshitaka Kajino +2
Type Ia supernovae (SNe Ia) are thought to be thermonuclear explosion of white dwarfs (WDs). Their progenitors are not well understood. One popular scenario is the double-degenerat…
Nucleosynthesis Constraints on the Explosion Mechanism for Type Ia Supernovae
Kanji Mori, Michael A. Famiano, Toshitaka Kajino +6
Observations of type Ia supernovae include information about the characteristic nucleosynthesis associated with these thermonuclear explosions. We consider observational constraint…
Impact of New Gamow-Teller Strengths on Explosive Type Ia Supernova Nucleosynthesis
Kanji Mori, Michael A. Famiano, Toshitaka Kajino +6
Recent experimental results have confirmed a possible reduction in the GT strengths of pf-shell nuclei. These proton-rich nuclei are of relevance in the deflagration and explos…
Dependence of the Sr-to-Ba and Sr-to-Eu Ratio on the Nuclear Equation of State in Metal Poor Halo Stars
M. A. Famiano, T. Kajino, W. Aoki +1
A model is proposed in which the light r-process element enrichment in metal-poor stars is explained via enrichment from a truncated r-process, or "tr-process." The truncation of t…