EUSO-SPB2 Cherenkov Telescope Cosmic Ray Observations

POSTER

Abstract

The Extreme Universe Space Observatory on a Super Pressure Balloon 2 (EUSO-SPB2) was launched from Wanaka, New Zealand, on May 13, 2023, marking the first high-altitude optical Cherenkov Telescope (CT) mission. The CT operated successfully for two full nights until the flight ended about 36 hours later due to a balloon leak over the Pacific Ocean. Despite the brief duration of the flight, the CT conducted the first neutrino background measurements at this altitude and searched for Cherenkov light signatures from Extensive Air Showers (EAS). Observations conducted above the Earth's horizon, resulted int the detection of EAS produced by cosmic rays (CRs) interacting with the atmosphere. We present here the detected cosmic ray candidate events from this mission.

*This work was partially supported by Basic Science Interdisciplinary Research Projects of RIKEN, JSPS KAKENHI Grant (22340063, 23340081, and 24244042), by ASI-INAF agreement n.2017-14-H.O, by Italian Ministry of Foreign Affairs and International Cooperation, by Italian Space Agency through ASI INFN agreements Mini-EUSO n.2016-1-U.0, n. 2017-8-H.0, OBP (n. 2020-26-Hh.0) and n. 2021-8-HH.0. by NASA award 11-APRA-21730058, 16-APROBES16-0023, 17-APRA17-0066, NNX17AJ82G, NNX13AH54G, 80NSSC18K0246, 80NSSC18K0473, 80NSSC19K0626, 80NSSC18K0464, 80NSSC22k0426 and 80NSSC19K0627in the USA, by French space agency CNES, by Deutsches Zentrum f\"ur Luft- und Raumfahrt, Helmholtz Alliance for Astroparticle Physics funded by Initiative and Networking Fund of the Helmholtz Association (Germany), by Slovak Academy of Sciences MVTS JEM–EUSO, by National Science Centre in Poland grants 2017/27/B/ST9/02162 and 2020/37/B/ST9/01821, by Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany Excellence Strategy -EXC-2094-390783311, by Mexican funding agencies PAPIIT-UNAM, CONACyT and Mexican Space Agency (AEM), as well as VEGA grant agency project 2/0132/17, and by State Space Corporation ROSCOSMOS and Interdisciplinary Scientific and Educational School of Moscow University ``Fundamental and Applied Space Research".

Presenters

  • Eliza Anna Gazda

    • University of California, Riverside

Authors

  • Eliza Anna Gazda

    • University of California, Riverside