Events

Network in Neutrinos, Nuclear Astrophysics, and Symmetries (N3AS) Seminars

<< Summer 2022 Fall 2022 Spring 2023 >>
Subscribe your calendar or receive email announcements of events

Events During the Week of August 14th through August 21st, 2022

Monday, August 15th, 2022

No events scheduled

Tuesday, August 16th, 2022

Effects of Nuclear Uncertainties on r-Process Observables
Time: 2:00 pm
Place: Join Zoom Meeting Meeting ID: 912 3071 4547
Speaker: Kelsey Lund , NC State University
Abstract: The rapid neutron capture process (r-process) is one of the main mechanisms whereby elements heavier than iron are synthesized, and is entirely responsible for the natural production of the actinides. Kilonova emissions are modeled as being largely powered by the radioactive decay of species synthesized via the r -process. Given that the r -process occurs far from nuclear stability, unmeasured nuclear properties play an essential role in determining the success of the r -process. In an effort to better understand the sensitivity of kilonova modeling to different theoretical global beta-decay descriptions, we incorporate these into nucleosynthesis calculations. We compare the results of these calculations and highlight differences in kilonova nuclear energy generation and light curve predictions, as well as final abundances and their implications for nuclear cosmochronometry. We investigate scenarios where differences in beta decay rates are responsible for increased nuclear heating on time scales of days that propagates into a significantly increased average bolometric luminosity. We identify key nuclei, both measured and unmeasured, whose decay rates are directly impact nuclear heating generation on timescales responsible for light curve evolution. We also find that uncertainties in beta decay rates significantly impact ages estimates from cosmochronometry.

Host: Baha Balantekin

Join Zoom Meeting
Meeting ID: 912 3071 4547
Host: Baha Balantekin
Add this event to your calendar

Wednesday, August 17th, 2022

No events scheduled

Thursday, August 18th, 2022

No events scheduled

Friday, August 19th, 2022

No events scheduled