May 15 – 21, 2022
America/New_York timezone

Neutrino Flavor Instability in Neutron Star Mergers

May 20, 2022, 2:50 PM
25m
Arcade Ballroom: South

Arcade Ballroom: South

Oral talk - Theory or phenomenology Neutrino astronomy and multi-messenger astrophysics Parallel

Speaker

Sherwood Richers (UC Berkeley)

Description

Neutrino flavor transformation is expected to significantly change the nucleosynthetic output and thus electromagnetic signature of neutron star mergers. However, merger simulations do not currently account for flavor transformation self-consistently, and there is not enough information in the common moment method for radiation transport to definitively determine the presence or results of flavor instabilities. I will present an exact method for detecting flavor instability in gray moment methods and describe the correlation between instability metrics and total flavor transformation using a suite of local (centimeter-scale) 1D flavor transformation simulations.

Primary author

Sherwood Richers (UC Berkeley)

Presentation materials