Unveiling extended gamma-ray emission around HESS J1813-178

Aharonian, F.; Hinton, J. A.; Boisson, C.; H. E. S. S. Collaboration; Moulin, E.; de Bony de Lavergne, M.; Khélifi, B.; Unbehaun, T.; Kluzniak, W.; Leitl, F.; Rieger, F.; Mehta, A.; Benkhali, F. Ait; Olivera-Nieto, L.; Shapopi, J. N. S.; Lemoine-Goumard, M.; Marx, R.; Venter, C.; Bolmont, J.; Montanari, A.; Einecke, S.; Ohm, S.; Grondin, M.-H.; Mbarubucyeye, J. Damascene; Berge, David; Pühlhofer, G.; Kundu, A.; Kostunin, D.; O'Brien, P.; Klepser, S.; de Ona Wilhelmi, E.; Chibueze, O.; Reichherzer, P.; Böttcher, M.; Sushch, I.; Bruno, B.; Grolleron, G.; Backes, M.; Le Stum, S.; Steppa, C.; Tluczykont, M.; Punch, M.; Giavitto, G.; Wach, T.; Holler, M.; Zdziarski, A. A.; Holch, Tim Lukas; Glawion, D.; Moderski, R.; Prokhorov, D. A.; Wagner, S. J.; Marinos, P.; Ghafourizadeh, S.; Bernlöhr, K.; Steinmassl, S.; Zywucka, N.; Chand, T.; Bulik, T.; Cotter, G.; Rudak, B.; Aschersleben, J.; Tsuji, N.; Brose, R.; Gallant, Y. A.; Reimer, O.; Filipovic, M.; Takahashi, T.; Fontaine, G.; Noel, A. Priyana; Chambery, P.; Terrier, R.; Veh, J.; Katarzynski, K.; Funk, S.; Burger-Scheidlin, C.; Reimer, A.; Bi, B.; Quirrenbach, A.; Jung-Richardt, I.; Steenkamp, R.; Feijen, K.; Salzmann, H.; Dmytriiev, A.; Zargaryan, D.; de Naurois, M.; Regeard, M.; Parsons, R. D.; Mackey, J.; Vink, J.; Chen, A.; Doroshenko, V.; Casanova, S.; Murach, T.; Ashkar, H.; Zouari, S.; Ren, H.; Joshi, V.; Cecil, R.; Hofmann, W.; Marandon, V.; Reville, B.; Panny, S.; Niemiec, J.; Ostrowski, M.; Martí-Devesa, G.; Sasaki, M.; Caroff, S.; Brun, F.; Roellinghoff, G.; Leuschner, F.; Komin, Nu.; Djannati-Ataï, A.; Baktash, A.; Batzofin, R.; Jamrozy, M.; van Eldik, C.; Barbosa Martins, V.; Jankowsky, F.; Mohrmann, L.; Mitchell, A.; Chibueze, J.; Tanaka, T.; Ernenwein, J.-P.; Füßling, M.; Lenain, J.-P.; Kosack, K.; Borowska, J.; Barnard, J.; Breuhaus, M.; Suzuki, H.; Wierzcholska, A.; Becherini, Y.; Vecchi, M.; Gabici, S.; Glicenstein, J. F.; Specovius, A.; Lang, R. G.; Lemière, A.; Cerruti, M.; Schüssler, F.; Celic, J.; Spencer, S.; Renaud, M.; Bouyahiaoui, M.; Zacharias, M.; Schutte, H. M.; Goswami, P.; Sahakian, V.; Khatoon, R.; Malyshev, D.; Panter, M.

doi:10.1051/0004-6361/202348374

%0 Journal Article
%A Aharonian, F.
%A Benkhali, F. Ait
%A Aschersleben, J.
%A Ashkar, H.
%A Backes, M.
%A Baktash, A.
%A Barbosa Martins, V.
%A Barnard, J.
%A Batzofin, R.
%A Becherini, Y.
%A Berge, David
%A Bernlöhr, K.
%A Bi, B.
%A Böttcher, M.
%A Boisson, C.
%A Bolmont, J.
%A de Bony de Lavergne, M.
%A Borowska, J.
%A Bouyahiaoui, M.
%A Breuhaus, M.
%A Brose, R.
%A Brun, F.
%A Bruno, B.
%A Bulik, T.
%A Burger-Scheidlin, C.
%A Caroff, S.
%A Casanova, S.
%A Cecil, R.
%A Celic, J.
%A Cerruti, M.
%A Chambery, P.
%A Chand, T.
%A Chen, A.
%A Chibueze, J.
%A Chibueze, O.
%A Cotter, G.
%A Mbarubucyeye, J. Damascene
%A Djannati-Ataï, A.
%A Dmytriiev, A.
%A Doroshenko, V.
%A Einecke, S.
%A Ernenwein, J.-P.
%A Feijen, K.
%A Filipovic, M.
%A Fontaine, G.
%A Füßling, M.
%A Funk, S.
%A Gabici, S.
%A Gallant, Y. A.
%A Ghafourizadeh, S.
%A Giavitto, G.
%A Glawion, D.
%A Glicenstein, J. F.
%A Goswami, P.
%A Grolleron, G.
%A Grondin, M.-H.
%A Hinton, J. A.
%A Hofmann, W.
%A Holch, Tim Lukas
%A Holler, M.
%A Jamrozy, M.
%A Jankowsky, F.
%A Joshi, V.
%A Jung-Richardt, I.
%A Katarzynski, K.
%A Khatoon, R.
%A Khélifi, B.
%A Klepser, S.
%A Kluzniak, W.
%A Komin, Nu.
%A Kosack, K.
%A Kostunin, D.
%A Kundu, A.
%A Lang, R. G.
%A Le Stum, S.
%A Leitl, F.
%A Lemière, A.
%A Lemoine-Goumard, M.
%A Lenain, J.-P.
%A Leuschner, F.
%A Mackey, J.
%A Malyshev, D.
%A Malyshev, D.
%A Marandon, V.
%A Marinos, P.
%A Martí-Devesa, G.
%A Marx, R.
%A Mehta, A.
%A Mitchell, A.
%A Moderski, R.
%A Mohrmann, L.
%A Montanari, A.
%A Moulin, E.
%A Murach, T.
%A de Naurois, M.
%A Niemiec, J.
%A Noel, A. Priyana
%A O'Brien, P.
%A Ohm, S.
%A Olivera-Nieto, L.
%A de Ona Wilhelmi, E.
%A Ostrowski, M.
%A Panny, S.
%A Panter, M.
%A Parsons, R. D.
%A Prokhorov, D. A.
%A Pühlhofer, G.
%A Punch, M.
%A Quirrenbach, A.
%A Regeard, M.
%A Reichherzer, P.
%A Reimer, A.
%A Reimer, O.
%A Ren, H.
%A Renaud, M.
%A Reville, B.
%A Rieger, F.
%A Roellinghoff, G.
%A Rudak, B.
%A Sahakian, V.
%A Salzmann, H.
%A Sasaki, M.
%A Schüssler, F.
%A Schutte, H. M.
%A Shapopi, J. N. S.
%A Specovius, A.
%A Spencer, S.
%A Steenkamp, R.
%A Steinmassl, S.
%A Steppa, C.
%A Sushch, I.
%A Suzuki, H.
%A Takahashi, T.
%A Tanaka, T.
%A Terrier, R.
%A Tluczykont, M.
%A Tsuji, N.
%A Unbehaun, T.
%A van Eldik, C.
%A Vecchi, M.
%A Veh, J.
%A Venter, C.
%A Vink, J.
%A Wach, T.
%A Wagner, S. J.
%A Wierzcholska, A.
%A Zacharias, M.
%A Zargaryan, D.
%A Zdziarski, A. A.
%A Zouari, S.
%A Zywucka, N.
%T Unveiling extended gamma-ray emission around HESS J1813-178
%J Astronomy and astrophysics
%V 686
%N arXiv:2403.16802
%@ 0004-6361
%C Les Ulis
%I EDP Sciences
%M PUBDB-2024-07365
%M arXiv:2403.16802
%P A149
%D 2024
%Z A&A 686, A149 (2024). 13+5 pages, 13+11 figures. Accepted for publication in A&A. Corresponding authors: T.Wach, A.Mitchell, V.Joshi, P.Chambéry  he German Research Foundation(DFG), the Helmholtz Association
%X Context. HESS J1813−178 is a very-high-energy γ-ray source spatially coincident with the young and energetic pulsar PSR J1813−1749and thought to be associated with its pulsar wind nebula (PWN). Recently, evidence for extended high-energy emission in the vicinityof the pulsar has been revealed in the Fermi Large Area Telescope (LAT) data. This motivates revisiting the HESS J1813−178 region,taking advantage of improved analysis methods and an extended dataset.Aims. Using data taken by the High Energy Stereoscopic System (H.E.S.S.) experiment and the Fermi-LAT, we aim to describe theγ-ray emission in the region with a consistent model, to provide insights into its origin.Methods. We performed a likelihood-based analysis on 32 hours of H.E.S.S. data and 12 yr of Fermi-LAT data and we fitted a spectromorphological model to the combined datasets. These results allowed us to develop a physical model for the origin of the observedγ-ray emission in the region.Results. In addition to the compact very-high-energy γ-ray emission centred on the pulsar, we find a significant yet previously undetected component along the Galactic plane. With Fermi-LAT data, we confirm extended high-energy emission consistent with theposition and elongation of the extended emission observed with H.E.S.S. These results establish a consistent description of the emission in the region from GeV energies to several tens of TeV.Conclusions. This study suggests that HESS J1813−178 is associated with a γ-ray PWN powered by PSR J1813−1749. A possibleorigin of the extended emission component is inverse Compton emission from electrons and positrons that have escaped the confinesof the pulsar and form a halo around the PWN.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:001253345700001
%R 10.1051/0004-6361/202348374
%U https://bib-pubdb1.desy.de/record/619078

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