First follow-up of transient events with the CTA Large Size Telescope prototype

Discussion timeslot (ZOOM-Meeting): 21. July 2021 - 12:00
ZOOM-Meeting URL: https://desy.zoom.us/j/98542982538
ZOOM-Meeting ID: 98542982538
ZOOM-Meeting Passcode: ICRC2021
Corresponding Session: https://icrc2021-venue.desy.de/channel/54-Gamma-Ray-Bursts-in-the-VHE-regime-GAI/94
Live-Stream URL: https://icrc2021-venue.desy.de/livestream/Discussion-04/5

Abstract:
"The recent detection of a very high energy (VHE) emission from Gamma-Ray Bursts (GRBs) above 100 GeV performed by the MAGIC and H.E.S.S. collaborations, has represented a significant, long-awaited result for the VHE astrophysics community. Although these results' scientific impact has not yet been fully exploited, the possibility to detect VHE gamma-ray signals from GRBs has always been considered crucial for clarifying the poorly known physics of these objects. Furthermore, the discovery of high-energy neutrinos and gravitational waves associated with astrophysical sources have definitively opened the era of multi-messenger astrophysics, providing unique insights into the physics of extreme cosmic accelerators. In the near future, the Cherenkov Telescope Array (CTA) will play a major role in this observation type. Within this framework, the Large Size Telescopes (LSTs) will be the instruments best suited to significantly impact on short time-scale transients follow-up thanks to their fast slewing and large effective area. The observations of the early emission phase of a wide range of transient events with good sensitivity below 100 GeV will allow us to open new opportunities for time-domain astrophysics in an energy range not affected by selective absorption processes typical for other wavelengths. In this contribution, I will report about the observational program and first transients follow-up observations performed by the LST-1 telescope currently in its commissioning phase on La Palma, Canary Islands, the CTA northern hemisphere site"

Authors: Koji Noda | Mykhailo Dalchenko | Armand Fiasson | Satoshi Fukami | David Sanchez | Pol Bordas | Yukiho Kobayashi | Alice Donini | Luca Foffano | Francesco Longo | Mathieu de Bony de Lavergne | Alessio Berti | Monica Seglar Arroyo | Fabian Schussler | Halim Ashkar | Alessandro Carosi | Thomas Vuillaume
Collaboration: CTA

Indico-ID: 835
Proceeding URL: https://pos.sissa.it/395/838