TY - JOUR
T1 - Modelling of highly extended Gamma-ray emission around the Geminga Pulsar as detected with H.E.S.S.
AU - the H.E.S.S. Collaboration
AU - Mitchell, A. M.W.
AU - Caroff, S.
AU - Aharonian, F.
AU - Ait Benkhali, F.
AU - Alkan, A.
AU - Aschersleben, J.
AU - Ashkar, H.
AU - Backes, M.
AU - Baktash, A.
AU - Barbosa Martins, V.
AU - Barnacka, A.
AU - Barnard, J.
AU - Batzofin, R.
AU - Becherini, Y.
AU - Beck, G.
AU - Berge, D.
AU - Bernlöhr, K.
AU - Bi, B.
AU - Böttcher, M.
AU - Boisson, C.
AU - Bolmont, J.
AU - de Bony de Lavergne, M.
AU - Borowska, J.
AU - Bouyahiaoui, M.
AU - Bradascio, F.
AU - Breuhaus, M.
AU - Brose, R.
AU - Brown, A.
AU - Brun, F.
AU - Bruno, B.
AU - Bulik, T.
AU - Burger-Scheidlin, C.
AU - Bylund, T.
AU - Cangemi, F.
AU - Caroff, S.
AU - Casanova, S.
AU - Cecil, R.
AU - Celic, J.
AU - Cerruti, M.
AU - Chambery, P.
AU - Chand, T.
AU - Chandra, S.
AU - Chen, A.
AU - Chibueze, J.
AU - Chibueze, O.
AU - Collins, T.
AU - Cotter, G.
AU - Cristofari, P.
AU - Damascene Mbarubucyeye, J.
AU - Fegan, S.
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 - Geminga is an enigmatic radio-quiet gamma-ray pulsar located at a mere 250 pc distance from Earth. Extended very-high-energy gamma-ray emission around the pulsar has been detected by multiple water Cherenkov detector based instruments. However, the detection of extended TeV gamma-ray emission around the Geminga pulsar has proven challenging for IACTs due to the angular scale exceeding the typical field-of-view. By detailed studies of background estimation techniques and characterising systematic effects, a detection of highly extended TeV gamma-ray emission could be confirmed by the H.E.S.S. IACT array. Building on the previously announced detection, in this contribution we further characterise the emission and apply an electron diffusion model to the combined gamma-ray data from the H.E.S.S. and HAWC experiments, as well as X-ray data from XMM-Newton.
AB - Geminga is an enigmatic radio-quiet gamma-ray pulsar located at a mere 250 pc distance from Earth. Extended very-high-energy gamma-ray emission around the pulsar has been detected by multiple water Cherenkov detector based instruments. However, the detection of extended TeV gamma-ray emission around the Geminga pulsar has proven challenging for IACTs due to the angular scale exceeding the typical field-of-view. By detailed studies of background estimation techniques and characterising systematic effects, a detection of highly extended TeV gamma-ray emission could be confirmed by the H.E.S.S. IACT array. Building on the previously announced detection, in this contribution we further characterise the emission and apply an electron diffusion model to the combined gamma-ray data from the H.E.S.S. and HAWC experiments, as well as X-ray data from XMM-Newton.
M3 - Conference article
AN - SCOPUS:85212284716
SN - 1824-8039
VL - 444
JO - Proceedings of Science
JF - Proceedings of Science
M1 - 590
T2 - 38th International Cosmic Ray Conference, ICRC 2023
Y2 - 26 July 2023 through 3 August 2023
ER -