Bulletin of the American Physical Society
APS April Meeting 2020
Volume 65, Number 2
Saturday–Tuesday, April 18–21, 2020; Washington D.C.
Session J03: Neutrino AstrophysicsInvited Live
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Sponsoring Units: DAP DPF Chair: Kate Scholberg, Duke University Room: Washington 2 |
Sunday, April 19, 2020 1:30PM - 2:06PM Live |
J03.00001: Recent Results in High-Energy Neutrino Astrophysics Invited Speaker: Ignacio Taboada Seven years ago, IceCube reported the observation of an isotropic flux of astrophysical neutrinos in the TeV-PeV energy range. While the flux has now been reported with several methods and with high significance, the nature of the neutrino sources remains unclear. More recently IceCube has identified the first very-high-energy neutrino source candidate: the blazar TXS 0506+056. But it is not obvious that blazars are the dominant contributor to the observed flux. The dearth of clearly identifiable neutrino point sources may indicate that the observed flux is dominated by a large number of relatively weak extra-galactic objects. Moreover, it's plausible that the very-high-energy neutrino sky is complex and several astrophysical classes contribute to the observations. In this presentation I will summarize the current status of astrophysical very high energy neutrinos. I will discuss current efforts to identify very-high-energy neutrino sources with an emphasis on the multi-messenger approach. I will review currently operating instruments: ANTARES and IceCube. And will review the prospects for future instruments: IceCube-Gen2 and KM3Net. [Preview Abstract] |
Sunday, April 19, 2020 2:06PM - 2:42PM Live |
J03.00002: Recent Results From Supernova Neutrino Theory Invited Speaker: Irene Tamborra Neutrinos are key particles in core-collapse supernovae. Neutrinos affect the stellar dynamics, drive the formation of new elements, and carry detectable imprints of the supernova inner working. Recent developments on the modelling of neutrinos and their conversions in the stellar envelope will be outlined. [Preview Abstract] |
Sunday, April 19, 2020 2:42PM - 3:18PM Live |
J03.00003: Neutrino signal of collapse-induced thermonuclear supernovae Invited Speaker: Kfir Blum We review the possibility that some or all core-collapse supernovae are collapse-induced thermonuclear explosions (CITEs), rather than neutrino-driven explosions. After a brief introduction, we focus on the neutrino signal and show that the neutrino burst of SN1987A is compatible with CITE and may hint for prompt black hole formation. Supernova constraints on new free-streaming particles (such as axions) must be revised in this scenario. We discuss predictions for the neutrino signal of the next Galactic core-collapse. [Preview Abstract] |
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