Joint H.E.S.S. and Fermi-LAT analysis of the region around PSR J1813-1749
T. Wach*,
A. Mitchell,
V. Joshi,
S. Funk,
On behalf of the Hess Collaboration,
F. Aharonian,
F. Ait-Benkhali, A. Alkan, J. Aschersleben, H. Ashkar, M. Backes, A. Baktash, V. Barbosa Martins, A. Barnacka, J. Barnard, R.W. Batzofin, Y. Becherini, G. Beck, D. Berge, K. Bernloehr, B. Bi, M. Boettcher, C. Boisson, J. Bolmont, M. Bony (de), J. Borowska-Naguszewska, M. Bouyahiaoui, F. Bradascio, M. Breuhaus, R. Brose, A. Brown, F. Brun, B. Bruno, T. Bulik, C. Burger-Scheidlin, T. Bylund, F. Cangemi, S. Caroff, S. Casanova, R. Cecil, J. Celic, M. Cerruti, P. Chambery, T.B. Chand, S. Chandra, A. Chen, J.O. Chibueze, O. Chibueze, T. Collins, G. Cotter, P. Cristofari, J. Damascene Mbarubucyeye, I.D. Davids, J. Davies, L. de Jonge, J. Devin, A. Djannati-Ataï, J.I. Djuvsland, A. Dmytriiev, V. Doroshenko, L. Dreyer, L. Du Plessis, K. Egberts, S. Einecke, J.P. Ernenwein, S. Fegan, K. Feijen, G. Fichet de Clairfontaine, G. Fontaine, L. Frans, M. Fuessling, S. Gabici, Y. Gallant, S. Ghafourizadeh, G. Giavitto, L. Giunti, D. Glawion, J.F. Glicenstein, J. Glombitza, P. Goswami, G. Grolleron, M.H. Grondin, L. Haerer, S. Hattingh, M. Haupt, G. Hermann, J. Hinton, W. Hofmann, T. Holch, M. Holler, D. Horns, Z.Q. Huang, A. Jaitly, M. Jamrozy, F. Jankowsky, A. Jardin-Blicq, I. Jung-Richardt, E. Kasai, K. Katarzynski, H. Katjaita, D. Khangulyan, R. Khatoon, B. Khelifi, S. Klepser, W. Kluzniak, N. Komin, R. Konno, K. Kosack, D. Kostunin, A. Kundu, G. Lamanna, R.G. Lang, S. Le Stum, V. Lefranc, F. Leitl, A. Lemiere, M. Lemoine-Goumard, J.P. Lenain, F. Leuschner, A. Luashvili, I. Lypova, J. Mackey, D. Malyshev, D. Malyshev, V. Marandon, A. Marcowith, P. Marinos, G. Marti'i-Devesa, R. Marx, G. Maurin, A. Mehta, P. Meintjes, M. Meyer, R. Moderski, L. Mohrmann, A. Montanari, C. Moore, E. Moulin, T. Murach, K. Nakashima, M. Naurois (de), H. Ndiyavala, J. Niemiec, A. Noel, P. O'Brien, S. Ohm, L. Olivera-Nieto, E. Ona-Wilhelmi (de), M. Ostrowski, E. Oukacha, S. Panny, M. Panter, D. Parsons, U. Pensec, G. Peron, S. Pita, V. Poireau, D. Prokhorov, H. Prokoph, G. Puehlhofer, M. Punch, A. Quirrenbach, M. Regeard, P. Reichherzer, A. Reimer, O. Reimer, I. Reis, Q. Remy, H.X. Ren, M. Renaud, B. Reville, F. Rieger, G. Roellinghoff, E. Rol, G.P. Rowell, B. Rudak, H. Rueda Ricarte, E. Ruiz Velasco, K. Sabri, V. Sahakian, S. Sailer, H. Salzmann, D. Sanchez, A. Santangelo, M. Sasaki, J. Schaefer, F. Schussler, H. Schutte, M. Senniappan, J.N.S. Shapopi, S. Shilunga, K. Shiningayamwe, H. Sol, H. Spackman, A. Specovius, S. Spencer, L. Stawarz, R. Steenkamp, C. Stegmann, S. Steinmassl, C. Steppa, K. Streil, I. Sushch, H. Suzuki, T. Takahashi, T. Tanaka, T. Tavernier, A. Taylor, R. Terrier, A. Thakur, H. Thiersen, C. Thorpe-Morgan, M. Tluczykont, M. Tsirou, N. Tsuji, R. Tuffs, Y. Uchiyama, M. Ullmo, T. Unbehaun, P. van der Merwe, C. van Eldik, B. van Soelen, G. Vasileiadis, M. Vecchi, J. Veh, C. Venter, J. Vink, H. Voelk, N. Vogel, S. Wagner, F. Werner, R. White, A. Wierzcholska, Y.W. Wong, H.M. Yassin, M. Zacharias, D. Zargaryan, A. Zdziarski, A. Zech, S. Zhu, A. Zmija, S. Zouari and N. Żywuckaet al. (click to show)*: corresponding author
Pre-published on:
August 05, 2023
Published on:
September 27, 2024
Abstract
HESS J1813-178 is one of the brightest sources detected during the first HESS Galactic Plane survey. The compact source, also detected by MAGIC, is believed to be a pulsar wind nebula powered by one of the most powerful pulsars known in the Galaxy, PSR J1813-1749 with a spin-down luminosity of 5.6 x 10^37 erg/s. With its extreme physical properties, as well as the pulsar's young age of 5.6 kyrs, the gamma-rays detected in this region allow us to study the evolution of a highly atypical system. Previous studies of the region in the GeV energy range show emission extended beyond the size of the compact HESS source. Using the archival HESS data with improved background methods, we perform a detailed morphological and spectral analysis of the region. Additionally to the compact, bright emission component, we find significantly extended emission, whose position is coincident with HESS J1813-178. We reanalyze the region in GeV and derive a joint-model in order to find a continuous description of the emission in the region from GeV to TeV. Using the results derived in this analysis, as well as x-ray and radio data of the region, we perform multi-wavelength spectral modeling. Possible hadronic or leptonic origins of the gamma-ray emission are investigated, and the diffusion parameters necessary to explain the extended emission are examined.
DOI: https://doi.org/10.22323/1.444.0589
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