12–23 Jul 2021
Online
Europe/Berlin timezone

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

21 Jul 2021, 12:00
1h 30m
04

04

Talk GAI | Gamma Ray Indirect Discussion

Speaker

Alessandro Carosi (Unige-DPNC)

Description

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

Subcategory Experimental Results
Collaboration CTA

Primary authors

Alessandro Carosi (Unige-DPNC) Alessio Berti (INFN) Alice Donini Armand Fiasson (LAPP-CNRS) David Sanchez (CNRS/LAPP) Fabian Schussler (IRFU / CEA Paris-Saclay) Francesco Longo Halim Ashkar Koji Noda (Institute for Cosmic Ray Research, The University of Tokyo) Luca Foffano (University of Geneva - DPNC) Mr Mathieu de Bony de Lavergne (Laboratoire d’Annecy de Physique des Particules, Univ. Grenoble Alpes, Univ. Savoie MontBlanc, CNRS, LAPP,) Monica Seglar Arroyo (CEA) Dr Mykhailo Dalchenko (DPNC, University of Geneva) Pol Bordas (Departament de Física Quàntica i Astrofísica, Universitat de Barcelona, Barcelona, Spain) Satoshi Fukami (ICRR) Thomas Vuillaume (LAPP, CNRS) Yukiho Kobayashi (Institute for Cosmic Ray Research, University of Tokyo, Japan)

Presentation materials