Studies on the VHE spectrum of the radio galaxy M87 observed by HAWC

Alfaro, R.; Alvarez, C.; Andres, A.; Anita-Rangel, E.; Araya, M.; Arteaga-Velazquez, J.C.; Rojas, D. Avila; Solares, H.A. Ayala; Babu, R.; Bangale, P.; Belmont-Moreno, E.; Bernal, A.; Caballero-Mora, K.S.; Capistran, T.; Carraminana, A.; Carreon, F.; Casanova, S.; de León, S. Coutiño; De, la Fuente E.; Depaoli, D.; Desiati, P.; Di, Lalla N.; Hernandez, R. Diaz; Dingus, B.L.; DuVernois, M.A.; Diaz-Velez, J.C.; Engel, K.; Ergin, T.; Espinoza, C.; Fang, K.; Fraija, N.; Fraija, S.; Garcia-Gonzalez, J.A.; Garfias, F.; Ghosh, N.; Muñoz, A. Gonzalez; Gonzalez, M.M.; Goodman, J.A.; Groetsch, S.; Gyeong, J.; Harding, J.P.; Hernandez-Cadena, S.; Herzog, I.; Huang, D.; Huntemeyer, P.; Iriarte, A.; Kaufmann, S.; Kieda, D.; Leavitt, K.; Vargas, H. León; Linnemann, J.T.; Longinotti, A.L.; Luis-Raya, G.; Malone, K.; Martinez, O.; Martinez-Castro, J.; Martinez-Huerta, H.; Matthews, J.A.; Miranda-Romagnoli, P.; Miron-Enriquez, P.E.; Montes, J.A.; Morales-Soto, J.A.; Mostafa, M.; Najafi, M.; Nellen, L.; Nisa, M.U.; Omodei, N.; Ponce, E.; Araujo, Y. Pérez; Perez-Perez, E.G.; Remy, Q.; Rho, C.D.; Rosa-Gonzalez, D.; Roth, M.; Salazar, H.; Salazar-Gallegos, D.; Sandoval, A.; Schneider, M.; Schwefer, G.; Serna-Franco, J.; Smith, A.J.; Son, Y.; Springer, R.W.; Tibolla, O.; Tollefson, K.; Torres, I.; Torres-Escobedo, R.; Turner, R.; Varela, E.; Villasenor, L.; Wang, X.; Wang, Z.; Watson, I.J.; Wu, H.; Yu, S.; Yun-Carcamo, S.; Zhou, H.

doi:10.22323/1.501.0789

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Studies on the VHE spectrum of the radio galaxy M87 observed by HAWC

Alfaro, R.;
Alvarez, C.;
Andres, A.;
Anita-Rangel, E.;
Araya, M.;
... Rho, C.D.;
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We report the detection of TeV gamma-ray emission from M87 with the High Altitude Water Cherenkov (HAWC) observatory, marking the first time its time-integrated TeV spectrum has been measured over an extended period of approximately 6 years. The emission is consistent with a power-law spectrum with index α = 2.53 ± 0.29 and flux normalization (7.09 ± 1.24) × 10−13 cm−2 s−1 TeV−1 at 1 TeV, extending up to 26.5 TeV at a 1σ confidence level. This result provides the most detailed characterization of the very-high-energy (VHE) emission of M87, derived from the longest temporal coverage up to date, and offers new constraints on particle acceleration in radio galaxies.

제목: Studies on the VHE spectrum of the radio galaxy M87 observed by HAWC

저자: Alfaro, R.; Alvarez, C.; Andres, A.; Anita-Rangel, E.; Araya, M.; Arteaga-Velazquez, J.C.; Rojas, D. Avila; Solares, H.A. Ayala; Babu, R.; Bangale, P.; Belmont-Moreno, E.; Bernal, A.; Caballero-Mora, K.S.; Capistran, T.; Carraminana, A.; Carreon, F.; Casanova, S.; de León, S. Coutiño; De, la Fuente E.; Depaoli, D.; Desiati, P.; Di, Lalla N.; Hernandez, R. Diaz; Dingus, B.L.; DuVernois, M.A.; Diaz-Velez, J.C.; Engel, K.; Ergin, T.; Espinoza, C.; Fang, K.; Fraija, N.; Fraija, S.; Garcia-Gonzalez, J.A.; Garfias, F.; Ghosh, N.; Muñoz, A. Gonzalez; Gonzalez, M.M.; Goodman, J.A.; Groetsch, S.; Gyeong, J.; Harding, J.P.; Hernandez-Cadena, S.; Herzog, I.; Huang, D.; Huntemeyer, P.; Iriarte, A.; Kaufmann, S.; Kieda, D.; Leavitt, K.; Vargas, H. León; Linnemann, J.T.; Longinotti, A.L.; Luis-Raya, G.; Malone, K.; Martinez, O.; Martinez-Castro, J.; Martinez-Huerta, H.; Matthews, J.A.; Miranda-Romagnoli, P.; Miron-Enriquez, P.E.; Montes, J.A.; Morales-Soto, J.A.; Mostafa, M.; Najafi, M.; Nellen, L.; Nisa, M.U.; Omodei, N.; Ponce, E.; Araujo, Y. Pérez; Perez-Perez, E.G.; Remy, Q.; Rho, C.D.; Rosa-Gonzalez, D.; Roth, M.; Salazar, H.; Salazar-Gallegos, D.; Sandoval, A.; Schneider, M.; Schwefer, G.; Serna-Franco, J.; Smith, A.J.; Son, Y.; Springer, R.W.; Tibolla, O.; Tollefson, K.; Torres, I.; Torres-Escobedo, R.; Turner, R.; Varela, E.; Villasenor, L.; Wang, X.; Wang, Z.; Watson, I.J.; Wu, H.; Yu, S.; Yun-Carcamo, S.; Zhou, H.

DOI: 10.22323/1.501.0789

발행일: 2025

유형: Conference Paper

저널명: Proceedings of Science

권: 501

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