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

Journal Article

PUBDB-2024-07365

Unveiling extended gamma-ray emission around HESS J1813-178

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

2024
EDP Sciences Les Ulis

Astronomy and astrophysics 686, A149 (2024) [10.1051/0004-6361/202348374]

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Please use a persistent id in citations: doi:10.1051/0004-6361/202348374 doi:10.3204/PUBDB-2024-07365

Report No.: arXiv:2403.16802

Abstract: 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.

Classification:

ddc:520

Note: 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

Contributing Institute(s):

Research Program(s):

613 - Matter and Radiation from the Universe (POF4-613) (POF4-613)

Experiment(s):

High Energy Stereoscopic System

Appears in the scientific report 2024

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Preprint Aharonian, F. ; Benkhali, F. A. ; Aschersleben, J. ; et al
Unveiling extended gamma-ray emission around HESS J1813-178
[10.3204/PUBDB-2025-00104] OpenAccess Files Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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