INPP Seminar | Neutrino-Induced Nucleosynthesis in Core-Collapse Supernova and the Birth of the Solar System, Sept. 8

Supernovas & Supernova Remnants

The Institute of Nuclear and Particle Physics (INPP) presents Dr. Projjwal Banerjee, of the University of Minnesota, presenting “Neutrino-Induced Nucleosynthesis in Core-Collapse Supernova and the Birth of the Solar System,” on Tuesday, Sept. 8, at at 4 p.m. in Edwards Accelerator Lab, Roger W. Finlay Conference Room.

Abstract: Abundances of short-lived radio-isotopes (SLR) in the early solar system (ESS) measured in meteorites provide crucial information about the events leading to the formation of the solar system.  However, the astrophysical sites for several of these SLR is sill uncertain.  We show that one of the key SLR ¹⁰Be can be made by neutrino-induced spallation during a core-collapse supernova (CCSN) in contrast to the current paradigm of ¹⁰Be, we find that a recent low mass CCSN, that occurred ~ 1 Myr before the Solar system formation, can self-consistently account for the ESS abundance of other SLRs such as ¹⁰⁷Pd, ⁴¹Ca, ⁵³Mn, ⁶⁰Fe and possibly also ³⁶Cl, ¹⁸²Hf, ¹³⁵Cs, and ²⁰⁵Pb. This makes this CCSN an attractive candidate for the event that triggered the formation of the solar system from the parent molecular cloud core.