NUK - logo
E-viri
Celotno besedilo
Odprti dostop
  • HAWC Study of Very-High-Energy $\gamma$-ray Spectrum of HAWC J1844-034
    HAWC Collaboration; Albert, A; Alvarez, C; Rojas, D. Avila; Solares, H. A. Ayala; Babu, R; Belmont-Moreno, E; Breuhaus, M; Capistrán, T; Carramiñana, A; Casanova, S; Cotzomi, J; de León, S. Coutiño; De la Fuente, E; Depaoli, D; Hernandez, R. Diaz; Dingus, B. L; DuVernois, M. A; Durocher, M; Engel, K; Espinoza, C; Fan, K. L; Fang, K; Fraija, N; García-González, J. A; González, M. M; Goodman, J. A; Groetsch, S; Harding, J. P; Herzog, I; Hinton, J; Huang, D; Hueyotl-Zahuantitla, F; Humensky, T. B; Hüntemeyer, P; Joshi, V; Kaufmann, S; Lee, J; Vargas, H. León; Longinotti, A. L; Luis-Raya, G; Malone, K; Martinez, O; Martínez-Castro, J; Matthews, J. A; Miranda-Romagnoli, P; Morales-Soto, J. A; Moreno, E; Mostafá, M; Nellen, L; Noriega-Papaqui, R; Olivera-Nieto, L; Omodei, N; Pérez-Pérez, E. G; Rho, C. D; Rosa-González, D; Ruiz-Velasco, E; Salazar, H; Salazar-Gallegos, D; Sandoval, A; Schneider, M; Serna-Franco, J; Smith, A. J; Son, Y; Springer, R. W; Tibolla, O; Tollefson, K; Torres, I; Torres-Escobedo, R; Turner, R; Ureña-Mena, F; Varela, E; Villaseñor, L; Wang, X; Watson, I. J; Willox, E; Zhou, H

    09/2023
    Journal Article

    ApJ 954 (2023) 205 Recently, the region surrounding eHWC J1842-035 has been studied extensively by gamma-ray observatories due to its extended emission reaching up to a few hundred TeV and potential as a hadronic accelerator. In this work, we use 1,910 days of cumulative data from the High Altitude Water Cherenkov (HAWC) observatory to carry out a dedicated systematic source search of the eHWC J1842-035 region. During the search we have found three sources in the region, namely, HAWC J1844-034, HAWC J1843-032, and HAWC J1846-025. We have identified HAWC J1844-034 as the extended source that emits photons with energies up to 175 TeV. We compute the spectrum for HAWC J1844-034 and by comparing with the observational results from other experiments, we have identified HESS J1843-033, LHAASO J1843-0338, and TASG J1844-038 as very-high-energy gamma-ray sources with a matching origin. Also, we present and use the multi-wavelength data to fit the hadronic and leptonic particle spectra. We have identified four pulsar candidates in the nearby region from which PSR J1844-0346 is found to be the most likely candidate due to its proximity to HAWC J1844-034 and the computed energy budget. We have also found SNR G28.6-0.1 as a potential counterpart source of HAWC J1844-034 for which both leptonic and hadronic scenarios are feasible.

Vnos na polico