PoS - Proceedings of Science
Volume 444 - 38th International Cosmic Ray Conference (ICRC2023) - Gamma-ray Astronomy (GA)
High energy gamma ray emission from HESSJ1809-193: Morphological and Spectral studies with HAWC
A. Albert, R.J. Alfaro, C. Alvarez, A. Andres, J.C. Arteaga Velazquez, D.O. Avila Rojas, H.A. Ayala Solares, R. Babu*, E. Belmont-Moreno, T. Capistrán Rojas, S. Yun, A. Carramiñana, F. Carreon-Gonzalez, U. Cotti, J. Cotzomi, S. Coutiño de León, E. de la Fuente, D. Depaoli, C.L. de León, R. Diaz Hernandez, J.C. Díaz Vélez, B. Dingus, M. Durocher, M. DuVernois, K. Engel, M.C. Espinoza Hernández, J. Fan, K. Fang, N.I. Fraija, J.A. Garcia-Gonzalez, F. Garfias, H. Goksu, M.M. González, J.A. Goodman, S.J. Groetsch, J.P. Harding, S. Hernández Cadena, I. Herzog, J. Hinton, B. Hona, D. Huang, F. Hueyotl-Zahuantitla, P. Hüntemeyer, A. Iriarte, V. Joshi, S. Kaufmann, D. Kieda, A. Lara, J. Lee, W.H. Lee, H. Leon Vargas, J. Linnemann, A.L. Longinotti, G. Luis-Raya, K. Malone, J. Martínez-Castro, J. Matthews, P. Miranda-Romagnoli, J.A. Montes, J.A. Morales Soto, M. Mostafa, L. Nellen, M.U. Nisa, R. Noriega-Papaqui, L. Olivera-Nieto, N. Omodei, Y. Pérez Araujo, E.G. Pérez Pérez, A. Pratts, C.D. Rho, D. Rosa-Gonzalez, E. Ruiz-Velasco, H.I. Salazar, D. Salazar-Gallegos, A. Sandoval, M. Schneider, G. Schwefer, J. Serna-Franco, A.J. Smith, Y. Yon, W.R. Springer, O. Tibolla, K. Tollefson, I. Torres, R. Torres Escobedo, R.M. Turner, F. Ureña-Mena, E. Varela, L. Villaseñor, X. Wang, I.J. Watson, F. Werner, K. Whitaker, E.J. Willox, H. Hongyi Wu, H. Zhou and K.S. Caballero Moraet al. (click to show)
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Pre-published on: July 25, 2023
Published on: —
Abstract
HESS J1809-193 is an unidentified TeV object , first detected by the High Energy Stereoscopic System (H.E.S.S.), located in a source-rich region with multiple source classes including SNR G11.1+0.1, SNR G11.0-0.0 and PSR J1809-1917. Initially classified as a pulsar wind nebula(PWN) candidate, however, recent studies show the presence of molecular clouds in the vicinity of the TeV source, indicating the evidence of a hadronic scenario for the observed very high-energy gamma rays. Marked as a potential PeVatron candidate, morphological and spectral studies for this region have been performed to better understand the nature of the particle acceleration mechanisms in the region. With 2090 days of data and new reconstruction algorithms, the High Altitude Water Cherenkov (HAWC) observatory is able to detect emission from this source above an energy of 100 TeV. In this report, we present the analysis of HESS J1809-193 with HAWC data and the multi-wavelength modeling of the region as well as potential sources of particle accceleration.
DOI: https://doi.org/10.22323/1.444.0789
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