Göttingen 2025 – scientific programme

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T: Fachverband Teilchenphysik

T 79: Methods in Astroparticle Physics III

T 79.5: Talk

Thursday, April 3, 2025, 17:15–17:30, VG 3.101

Status of the IceAct Telescopes above the IceCube Neutrino Observatory — •Lars Heuermann, Lars Marten, Andreas Nöll, Sönke Schwirn, and Chistopher Wiebusch — RWTH Aachen - III. physikalisches Institut B, Aachen, Germany

IceAct is an array of Imaging Air Cherenkov Telescopes on the ice surface above the IceCube Neutrino Observatory. Each telescope features a SiPM-based 61-pixel camera and Fresnel lens-based optics, resulting in a 12-degree field of view. The design is optimized to be operated in harsh environments, particularly at the South Pole. The setup will consist of a station of seven telescopes in a so-called fly's eye configuration, increasing the field of view to 36°, and an additional telescope 200m apart for stereoscopic observations. Three of the eight telescopes are currently taking data. Another two have been shipped and are being prepared for data taking starting in 2025. In this talk we will review the status of the installation, recent analysis results, and report on the ongoing upgrade.

Keywords: Imaging air cherenkov telescope; IceAct; cosmic rays; Silicon Photomultiplier; detector operations