TY - JOUR
T1 - Multi-wavelength analysis of the galactic PeVatron candidate LHAASO J2108+5157
AU - CTA LST Project
AU - Pirola, G.
AU - Juryšek, J.
AU - Balbo, M.
AU - Eckert, D.
AU - Tramacere, A.
AU - Walter, R.
AU - Abe, K.
AU - Abe, S.
AU - Aguasca-Cabot, A.
AU - Agudo, I.
AU - Alvarez Crespo, N.
AU - Antonelli, L. A.
AU - Aramo, C.
AU - Arbet-Engels, A.
AU - Arcaro, C.
AU - Artero, M.
AU - Asano, K.
AU - Aubert, P.
AU - Baktash, A.
AU - Bamba, A.
AU - Baquero Larriva, A.
AU - Baroncelli, L.
AU - Barres de Almeida, U.
AU - Barrio, J. A.
AU - Batkovic, I.
AU - Baxter, J.
AU - Becerra González, J.
AU - Bernardini, E.
AU - Bernardos, M. I.
AU - Bernete Medrano, J.
AU - Berti, A.
AU - Bhattacharjee, P.
AU - Biederbeck, N.
AU - Bigongiari, C.
AU - Bissaldi, E.
AU - Blanch, O.
AU - Bonnoli, G.
AU - Bordas, P.
AU - Bulgarelli, A.
AU - Burelli, I.
AU - Burmistrov, L.
AU - Buscemi, M.
AU - Cardillo, M.
AU - Caroff, S.
AU - Carosi, A.
AU - Carrasco, M. S.
AU - Cassol, F.
AU - Cauz, D.
AU - Cerasole, D.
AU - Murase, K.
N1 - Publisher Copyright:
© Copyright owned by the author(s) under the terms of the Creative Commons.
PY - 2024/9/27
Y1 - 2024/9/27
N2 - LHAASO J2108+5157 is a recently discovered source, detected in the Ultra-High-Energy band by the LHAASO collaboration. Two molecular clouds were identified in the direction coincident with LHAASO J2108+5157 and, from the spectra reported by LHAASO, there is no sign of an energy cutoff up to 200 TeV. This source makes a promising galactic PeVatron candidate. In 2021, the Large-Sized Telescope prototype (LST-1) of the Cherenkov Telescope Array (CTA) Observatory, collected about 50 hours of quality-selected data on LHAASO J2108+5157. Through these observations, we managed to compute stringent upper limits on the source emission in the multi-TeV band. Together with the analysis of XMM-Newton data and 12 years of Fermi-LAT data, we performed a multi-wavelength study of the source, investigating different possible scenarios of particle acceleration. In this contribution, we will present the results of the analysis, as well as the multi-wavelength modeling, and consequent interpretation of different possible scenarios of emission.
AB - LHAASO J2108+5157 is a recently discovered source, detected in the Ultra-High-Energy band by the LHAASO collaboration. Two molecular clouds were identified in the direction coincident with LHAASO J2108+5157 and, from the spectra reported by LHAASO, there is no sign of an energy cutoff up to 200 TeV. This source makes a promising galactic PeVatron candidate. In 2021, the Large-Sized Telescope prototype (LST-1) of the Cherenkov Telescope Array (CTA) Observatory, collected about 50 hours of quality-selected data on LHAASO J2108+5157. Through these observations, we managed to compute stringent upper limits on the source emission in the multi-TeV band. Together with the analysis of XMM-Newton data and 12 years of Fermi-LAT data, we performed a multi-wavelength study of the source, investigating different possible scenarios of particle acceleration. In this contribution, we will present the results of the analysis, as well as the multi-wavelength modeling, and consequent interpretation of different possible scenarios of emission.
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M3 - Conference article
AN - SCOPUS:85185575262
SN - 1824-8039
VL - 444
JO - Proceedings of Science
JF - Proceedings of Science
M1 - 727
T2 - 38th International Cosmic Ray Conference, ICRC 2023
Y2 - 26 July 2023 through 3 August 2023
ER -