SMuK 2023 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 53: Invited Topical Talks II-B

T 53.1: Eingeladener Vortrag

Mittwoch, 22. März 2023, 14:00–14:20, HSZ/0003

LST-1: Initial scientific results from the first CTA telescope — •Dominik Elsaesser for the CTA collaboration — Fakultät Physik, TU Dortmund

The Cherenkov Telescope Array (CTA) will lead the frontier of ground-based gamma-ray astronomy with its unprecedented sensitivity in the energy range between 20 GeV to 300 TeV. CTA will be composed of two telescope sites, in the northern hemisphere on the Roque de Los Muchachos Observatory in La Palma, Spain and in the southern hemisphere at the Paranal Observatory in the Atacama Desert in Chile, and of three telescope types: Large, Medium, and Small sized telescopes. The Large-Sized Telescopes (LSTs) are specially designed for low-energy and transient phenomena and will dominate CTA's sensitivity in the energy range from 20 GeV to 150 GeV. The northern CTA site at Roque de Los Muchachos, La Palma, will host an array of four LSTs, each with a mirror diameter of 23m. The prototype, LST-1, was inaugurated in October 2018 and has since been in its commissioning phase. In this talk, we report on the first results from scientific observations using LST-1. Finally, we will discuss prospects for LST 2-4.