Towards a paradigm change in the main heavy r-process nucleosynthesis sites

TY - BOOK

T1 - Towards a paradigm change in the main heavy r-process nucleosynthesis sites

AU - Grichener, Aldana

AU - Soker, Noam

PY - 2019/9/13

Y1 - 2019/9/13

N2 - We study the basic properties of three possible r-process scenarios (sites) and compare them to recent observations and theoretical simulations. We find that the common envelope jets supernova (CEJSN) r-process scenario can account for the different observations of r-process nucleosynthesis, including the presence of r-process-rich low-metalicity stars in ultra-faint dwarf (UFD) galaxies. The neutron star (NS)-NS merger scenario and the collapsar scenario encounter some difficulties. Despite that, we conclude that it is very likely that more than one r-process scenario exists, with a significant contribution by the CEJSN r-process scenario. We give a prescription to include this scenario in population synthesis studies of the r-process.

AB - We study the basic properties of three possible r-process scenarios (sites) and compare them to recent observations and theoretical simulations. We find that the common envelope jets supernova (CEJSN) r-process scenario can account for the different observations of r-process nucleosynthesis, including the presence of r-process-rich low-metalicity stars in ultra-faint dwarf (UFD) galaxies. The neutron star (NS)-NS merger scenario and the collapsar scenario encounter some difficulties. Despite that, we conclude that it is very likely that more than one r-process scenario exists, with a significant contribution by the CEJSN r-process scenario. We give a prescription to include this scenario in population synthesis studies of the r-process.

UR - https://arxiv.org/abs/1909.06328

M3 - 书

BT - Towards a paradigm change in the main heavy r-process nucleosynthesis sites

ER -