The role of rotation in Accretion Induced Collapse of White Dwarfs

Friday 23 Jun 2023, 11:00 → 12:00 Europe/Berlin

SR 102 (TPI, FSU Jena)

Luis Felipe Longo Micchi

Studies have proposed accretion-induced collapse (AIC) of white dwarfs (WDs) as possible
power engines of short GRBs with extended emission (sGRB+EE). Aware of the recent turmoil
around GRB211211A (a known sGRB+EE) origins, we revisited the science case of AICs. In this
talk, we will discuss the results of three models of WDs that collapse due to electron capture.
Parameterized by their initial angular momentum, we study the influence of rotation in our AIC
models. A careful characterization of the multi-messenger emission of these events will be dis-
cussed. With a particular focus on gravitational radiation, we will examine their gravitational
wave (GW) morphology and their detectability in current and future ground-based GW detectors.
We provide estimates of their electromagnetic and neutrino radiation profile and compare them
against other supernova-like events. All our models are fully general-relativistic three-dimensional
numerical simulations containing a moment-based neutrino radiation transport. The inclusion of
magnetic fields is an undergoing extension of our work.