Detection of extended TeV emission around the Geminga pulsar with H.E.S.S.

Mitchell, A.M.W.; Caroff, S.; Hinton, J.; Mohrmann, L.; Abdalla, H.; Aharonian, F.; Ait Benkhali, F.; Angüner, E.O.; Arcaro, C.; Armand, C.; Armstrong, T.; Ashkar, H.; Backes, M.; Baghmanyan, V.; Barbosa Martins, V.; Barnacka, A.; Barnard, M.; Batzofin, R.; Becherini, Y.; Berge, D.; et al.

Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/139239

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Type:	Conference paper
Title:	Detection of extended TeV emission around the Geminga pulsar with H.E.S.S.
Author:	Mitchell, A.M.W. Caroff, S. Hinton, J. Mohrmann, L. Abdalla, H. Aharonian, F. Ait Benkhali, F. Angüner, E.O. Arcaro, C. Armand, C. Armstrong, T. Ashkar, H. Backes, M. Baghmanyan, V. Barbosa Martins, V. Barnacka, A. Barnard, M. Batzofin, R. Becherini, Y. Berge, D. et al.
Citation:	Proceedings of Science, 2022, vol.395, pp.780-1-780-8
Publisher:	SISSA
Issue Date:	2022
Series/Report no.:	Proceedings of Science; 395
ISSN:	1824-8039 1824-8039
Conference Name:	37th International Cosmic Ray Conference (ICRC) (12 Jul 2021 - 23 Jul 2021 : Berlin, Germany)
Statement of Responsibility:	A.M.W. Mitchell, S. Caroff, J. Hinton and L. Mohrmannd on behalf of the H.E.S.S. Collaboration. H. Abdalla ... S. Einecke ... K. Feijen ... G. Rowell ... et al.
Abstract:	Highly extended gamma-ray emission around the Geminga pulsar was discovered by Milagro and verified by HAWC. Despite many observations with Imaging Atmospheric Cherenkov Telescopes (IACTs), detection of gamma-ray emission on angular scales exceeding the IACT field-of-view has proven challenging. Recent developments in analysis techniques have enabled the detection of significant emission around Geminga in archival data with H.E.S.S.. In 2019, further data on the Geminga region were obtained with an adapted observation strategy. Following the announcement of the detection of significant TeV emission around Geminga in archival data, in this contribution we present the detection in an independent dataset. New analysis results will be presented, and emphasis given to the technical challenges involved in observations of highly extended gamma-ray emission with IACTs.
Rights:	© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).
DOI:	10.22323/1.395.0780
Published version:	https://pos.sissa.it/395/
Appears in Collections:	Physics publications

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