Neutrino Target-of-Opportunity Sky Coverage and Scheduler for EUSO-SPB2

Abstract

Very-high-energy neutrinos can be observed by detecting air shower signals. Detection of transient target of opportunity (ToO) neutrino sources is part of a broader multimessenger program. The Extreme Universe Space Observatory on a Super Pressure Balloon 2 (EUSO-SPB2) Mission, launched on May 12, 2023, was equipped with an optical Cherenkov Telescope (CT) designed to detect up-going air showers sourced by Earth-skimming neutrinos that interact near the Earth's limb. Presented here is an overview of the sky coverage and ToO scheduler software for EUSO-SPB2. By using the balloon trajectory coordinates and setting constraints on the positions of the Sun and Moon to ensure dark skies, we can determine if and when a source direction is slightly below the Earth's limb. From a source catalog, CT scheduling and pointing is performed to optimize the search for high-energy neutrinos coming from astrophysical sources. Some sample results for EUSO-SPB2 are shown.

10 pages, 6 figures, ICRC2023 Conference Proceedings

References in corpus (5)

• Modeling of the Tau and Muon Neutrino-induced Optical Cherenkov Signals from Upward-moving Extensive Air Showers
• Overview and First Results of EUSO-SPB2
• The EUSO-SPB2 Cherenkov Telescope -- Flight Performance and Preliminary Results
• The Terzina instrument onboard the NUSES space mission
• Overview of the EUSO-SPB2 Target of Opportunity program using the Cherenkov Telescope

Cited by in corpus (2)

• Overview and First Results of EUSO-SPB2
• Overview of the EUSO-SPB2 Target of Opportunity program using the Cherenkov Telescope