HAWC Study of the Very-high-energy γ-Ray Spectrum of HAWC J1844−034

Albert A, Alvarez C, Rojas DA, Solares HA, Babu R, Belmont-Moreno E, Breuhaus M, Capistrán T, Carramiñana A, Casanova S, Cotzomi J, de León SC, De la Fuente E, Depaoli D, Diaz Hernandez R, Dingus BL, DuVernois MA, Durocher M, Engel K, Espinoza C, Fan KL, Fang K, Fraija N, García-González JA, González MM, Goodman JA, Groetsch S, Harding JP, Herzog I, Hinton J, Huang D, Hueyotl-Zahuantitla F, Humensky TB, Hüntemeyer P, Joshi V, Kaufmann S, Lee J, Vargas HL, Longinotti AL, Luis-Raya G, Malone K, Martinez O, Martínez-Castro J, Matthews JA, Miranda-Romagnoli P, Morales-Soto JA, Moreno E, Mostafá M, Nellen L, Noriega-Papaqui R, Olivera-Nieto L, Omodei N, Pérez-Pérez EG, Rho CD, Rosa-González D, Ruiz-Velasco E, Salazar H, Salazar-Gallegos D, Sandoval A, Schneider M, Serna-Franco J, Smith AJ, Son Y, Springer RW, Tibolla O, Tollefson K, Torres I, Torres-Escobedo R, Turner R, Ureña-Mena F, Varela E, Villaseñor L, Wang X, Watson IJ, Willox E, Zhou H (2023)

Publication Type: Journal article

Publication year: 2023

Journal

Book Volume: 954

Article Number: 205

Journal Issue: 2

DOI: 10.3847/1538-4357/ace967

Abstract

Recently, the region surrounding eHWC J1842−035 has been studied extensively by γ-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 1910 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 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 γ-ray sources with a matching origin. Also, we present and use the multiwavelength data to fit the hadronic and leptonic particle spectra. We have identified four pulsar candidates in the nearby region in 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.

Authors with CRIS profile

Involved external institutions

Los Alamos National Laboratory United States (USA) (US) Universidad Autónoma de Chiapas (UNACH) Mexico (MX) National Autonomous University of Mexico / Universidad Nacional Autónoma de México (UNAM) Mexico (MX) Pennsylvania State University (Penn State) United States (USA) (US) Michigan Technological University United States (USA) (US) Max-Planck-Institut für Kernphysik (MPIK) / Max Planck Institute for Nuclear Physics Germany (DE) National Institute of Astrophysics, Optics and Electronics / Instituto Nacional de Astrofísica, Óptica y Electrónica (INAOE) Mexico (MX) Institute of Nuclear Physics PAN / Instytut Fizyki Jądrowej im. Henryka Niewodniczańskiego PAN Poland (PL) Benemérita Universidad Autónoma de Puebla (BUAP) / Meritorious Autonomous University of Puebla Mexico (MX) University of Wisconsin - Madison United States (USA) (US) Universidad de Guadalajara (UDEG) Mexico (MX) University of Maryland United States (USA) (US) Tecnológico de Monterrey (ITESM) Mexico (MX) Michigan State University United States (USA) (US) National Aeronautics and Space Administration (NASA) United States (USA) (US) Universidad Politécnica de Pachuca (UPP) Mexico (MX) University of Seoul (UOS) / 서울시립대학교 Korea, Republic of (KR) National Polytechnic Institute of Mexico / Instituto Politécnico Nacional de México Mexico (MX) University of New Mexico (UNM) / Universidad de Nuevo México United States (USA) (US) Autonomous University of the State of Hidalgo / Universidad Autónoma del Estado de Hidalgo Mexico (MX) Universidad Michoacana de San Nicolás de Hidalgo (UMSNH) Mexico (MX) Stanford University United States (USA) (US) Sungkyunkwan University (SKKU) Korea, Republic of (KR)

How to cite

APA:

Albert, A., Alvarez, C., Rojas, D.A., Solares, H.A., Babu, R., Belmont-Moreno, E.,... Zhou, H. (2023). HAWC Study of the Very-high-energy γ-Ray Spectrum of HAWC J1844−034. Astrophysical Journal, 954(2). https://doi.org/10.3847/1538-4357/ace967

MLA:

Albert, A., et al. "HAWC Study of the Very-high-energy γ-Ray Spectrum of HAWC J1844−034." Astrophysical Journal 954.2 (2023).

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