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Investigating IceCube Neutrino Alerts with the HAWC $γ$-Ray Observatory

Fuente: arXiv

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Detalles Bibliográficos
Autores principales:	The HAWC Collaboration, Alfaro, R., Alvarez, C., Andrés, A., Anita-Rangel, E., Araya, M., Arteaga-Velázquez, J. C., Rojas, D. Avila, Solares, H. A. Ayala, Babu, R., Belmont-Moreno, E., Bernal, A., Caballero-Mora, K. S., Capistrán, T., Carreón, F., Casanova, S., Cotzomi, J., de León, S. Coutiño, de León, C., De la Fuente, E., Desiati, P., Di Lalla, N., Hernandez, R. Diaz, DuVernois, M. A., Díaz-Vélez, J. C., Engel, K., Espinoza, C., Fraija, N., Fraija, S., Galván-Gámez, A., García-González, J. A., Garfias, F., Ghosh, N., Muñoz, A. Gonzalez, González, M. M., González, J. A., Goodman, J. A., Guevel, D., Gyeong, J., Harding, J. P., Hernández-Cadena, S., Herzog, I., Hinton, J., Huang, D., Hueyotl-Zahuantitla, F., Hüntemeyer, P., Iriarte, A., Kaufmann, S., Kieda, D., Leavitt, K., Lee, J., Lee, W. H., Vargas, H. León, Linnemann, J. T., Longinotti, A. L., Luis-Raya, G., Malone, K., Martinez, O., Martínez-Castro, J., Matthews, J. A., Miranda-Romagnoli, P., Mirón-Enriquez, P. E., Moreno, E., Mostafá, M., Najafi, M., Nayerhoda, A., Nellen, L., Nisa, M. U., Noriega-Papaqui, R., Omodei, N., Osorio-Archila, M., Ponce, E., Araujo, Y. Pérez, Pérez-Pérez, E. G., Rho, C. D., Rosa-González, D., Roth, M., Salazar, H., Salazar-Gallegos, D., Sandoval, A., Schneider, M., Serna-Franco, J., Shin, M., Smith, A. J., Son, Y., Springer, R. W., Tibolla, O., Tollefson, K., Torres, I., Torres-Escobedo, R., Varela, E., Villaseñor, L., Wang, X., Wang, Z., Watson, I. J., Wu, H., Yu, S., Zhou, H.
Formato:	Preprint
Publicado:	2026
Materias:	High Energy Astrophysical Phenomena
Acceso en línea:	Acceder al recurso
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_version_	1866915805897162752
author	The HAWC Collaboration Alfaro, R. Alvarez, C. Andrés, A. Anita-Rangel, E. Araya, M. Arteaga-Velázquez, J. C. Rojas, D. Avila Solares, H. A. Ayala Babu, R. Belmont-Moreno, E. Bernal, A. Caballero-Mora, K. S. Capistrán, T. Carreón, F. Casanova, S. Cotzomi, J. de León, S. Coutiño de León, C. De la Fuente, E. Desiati, P. Di Lalla, N. Hernandez, R. Diaz DuVernois, M. A. Díaz-Vélez, J. C. Engel, K. Espinoza, C. Fraija, N. Fraija, S. Galván-Gámez, A. García-González, J. A. Garfias, F. Ghosh, N. Muñoz, A. Gonzalez González, M. M. González, J. A. Goodman, J. A. Guevel, D. Gyeong, J. Harding, J. P. Hernández-Cadena, S. Herzog, I. Hinton, J. Huang, D. Hueyotl-Zahuantitla, F. Hüntemeyer, P. Iriarte, A. Kaufmann, S. Kieda, D. Leavitt, K. Lee, J. Lee, W. H. Vargas, H. León Linnemann, J. T. Longinotti, A. L. Luis-Raya, G. Malone, K. Martinez, O. Martínez-Castro, J. Matthews, J. A. Miranda-Romagnoli, P. Mirón-Enriquez, P. E. Moreno, E. Mostafá, M. Najafi, M. Nayerhoda, A. Nellen, L. Nisa, M. U. Noriega-Papaqui, R. Omodei, N. Osorio-Archila, M. Ponce, E. Araujo, Y. Pérez Pérez-Pérez, E. G. Rho, C. D. Rosa-González, D. Roth, M. Salazar, H. Salazar-Gallegos, D. Sandoval, A. Schneider, M. Serna-Franco, J. Shin, M. Smith, A. J. Son, Y. Springer, R. W. Tibolla, O. Tollefson, K. Torres, I. Torres-Escobedo, R. Varela, E. Villaseñor, L. Wang, X. Wang, Z. Watson, I. J. Wu, H. Yu, S. Zhou, H.
author_facet	The HAWC Collaboration Alfaro, R. Alvarez, C. Andrés, A. Anita-Rangel, E. Araya, M. Arteaga-Velázquez, J. C. Rojas, D. Avila Solares, H. A. Ayala Babu, R. Belmont-Moreno, E. Bernal, A. Caballero-Mora, K. S. Capistrán, T. Carreón, F. Casanova, S. Cotzomi, J. de León, S. Coutiño de León, C. De la Fuente, E. Desiati, P. Di Lalla, N. Hernandez, R. Diaz DuVernois, M. A. Díaz-Vélez, J. C. Engel, K. Espinoza, C. Fraija, N. Fraija, S. Galván-Gámez, A. García-González, J. A. Garfias, F. Ghosh, N. Muñoz, A. Gonzalez González, M. M. González, J. A. Goodman, J. A. Guevel, D. Gyeong, J. Harding, J. P. Hernández-Cadena, S. Herzog, I. Hinton, J. Huang, D. Hueyotl-Zahuantitla, F. Hüntemeyer, P. Iriarte, A. Kaufmann, S. Kieda, D. Leavitt, K. Lee, J. Lee, W. H. Vargas, H. León Linnemann, J. T. Longinotti, A. L. Luis-Raya, G. Malone, K. Martinez, O. Martínez-Castro, J. Matthews, J. A. Miranda-Romagnoli, P. Mirón-Enriquez, P. E. Moreno, E. Mostafá, M. Najafi, M. Nayerhoda, A. Nellen, L. Nisa, M. U. Noriega-Papaqui, R. Omodei, N. Osorio-Archila, M. Ponce, E. Araujo, Y. Pérez Pérez-Pérez, E. G. Rho, C. D. Rosa-González, D. Roth, M. Salazar, H. Salazar-Gallegos, D. Sandoval, A. Schneider, M. Serna-Franco, J. Shin, M. Smith, A. J. Son, Y. Springer, R. W. Tibolla, O. Tollefson, K. Torres, I. Torres-Escobedo, R. Varela, E. Villaseñor, L. Wang, X. Wang, Z. Watson, I. J. Wu, H. Yu, S. Zhou, H.
contents	Neutrino emission from astrophysical sources has long been considered a signature of cosmic-ray acceleration. The IceCube neutrino observatory has observed a diffuse flux of TeV-PeV neutrinos, but very few confirmed sources have emerged. With the recent publication of IceCube Event Catalog (IceCat-1), IceCube has released a list of the most promising astrophysical neutrino events since May 2011. Using the archival data from the High Altitude Water Cherenkov (HAWC) $γ$-ray observatory, we perform a coincidence search for gamma rays and neutrinos using a Bayesian Block algorithm with the public IceCube alerts from IceCat-1, along with additional alerts issued later. In this work, we consider 368 alerts, up to July 8, 2025, that are within HAWC's field of view. We observe approximately a 5\% coincident detection rate, which is consistent with expectations from background. Two of these detections contain the Active Galactic Nuclei (AGN) Markarian 421 and Markarian 501. We discuss the likelihood that the neutrino/$γ$-ray coincidences are false positives and a brief overview of the results.
format	Preprint
id	arxiv_https___arxiv_org_abs_2602_16818
institution	arXiv
publishDate	2026
record_format	arxiv
spellingShingle	Investigating IceCube Neutrino Alerts with the HAWC $γ$-Ray Observatory The HAWC Collaboration Alfaro, R. Alvarez, C. Andrés, A. Anita-Rangel, E. Araya, M. Arteaga-Velázquez, J. C. Rojas, D. Avila Solares, H. A. Ayala Babu, R. Belmont-Moreno, E. Bernal, A. Caballero-Mora, K. S. Capistrán, T. Carreón, F. Casanova, S. Cotzomi, J. de León, S. Coutiño de León, C. De la Fuente, E. Desiati, P. Di Lalla, N. Hernandez, R. Diaz DuVernois, M. A. Díaz-Vélez, J. C. Engel, K. Espinoza, C. Fraija, N. Fraija, S. Galván-Gámez, A. García-González, J. A. Garfias, F. Ghosh, N. Muñoz, A. Gonzalez González, M. M. González, J. A. Goodman, J. A. Guevel, D. Gyeong, J. Harding, J. P. Hernández-Cadena, S. Herzog, I. Hinton, J. Huang, D. Hueyotl-Zahuantitla, F. Hüntemeyer, P. Iriarte, A. Kaufmann, S. Kieda, D. Leavitt, K. Lee, J. Lee, W. H. Vargas, H. León Linnemann, J. T. Longinotti, A. L. Luis-Raya, G. Malone, K. Martinez, O. Martínez-Castro, J. Matthews, J. A. Miranda-Romagnoli, P. Mirón-Enriquez, P. E. Moreno, E. Mostafá, M. Najafi, M. Nayerhoda, A. Nellen, L. Nisa, M. U. Noriega-Papaqui, R. Omodei, N. Osorio-Archila, M. Ponce, E. Araujo, Y. Pérez Pérez-Pérez, E. G. Rho, C. D. Rosa-González, D. Roth, M. Salazar, H. Salazar-Gallegos, D. Sandoval, A. Schneider, M. Serna-Franco, J. Shin, M. Smith, A. J. Son, Y. Springer, R. W. Tibolla, O. Tollefson, K. Torres, I. Torres-Escobedo, R. Varela, E. Villaseñor, L. Wang, X. Wang, Z. Watson, I. J. Wu, H. Yu, S. Zhou, H. High Energy Astrophysical Phenomena Neutrino emission from astrophysical sources has long been considered a signature of cosmic-ray acceleration. The IceCube neutrino observatory has observed a diffuse flux of TeV-PeV neutrinos, but very few confirmed sources have emerged. With the recent publication of IceCube Event Catalog (IceCat-1), IceCube has released a list of the most promising astrophysical neutrino events since May 2011. Using the archival data from the High Altitude Water Cherenkov (HAWC) $γ$-ray observatory, we perform a coincidence search for gamma rays and neutrinos using a Bayesian Block algorithm with the public IceCube alerts from IceCat-1, along with additional alerts issued later. In this work, we consider 368 alerts, up to July 8, 2025, that are within HAWC's field of view. We observe approximately a 5\% coincident detection rate, which is consistent with expectations from background. Two of these detections contain the Active Galactic Nuclei (AGN) Markarian 421 and Markarian 501. We discuss the likelihood that the neutrino/$γ$-ray coincidences are false positives and a brief overview of the results.
title	Investigating IceCube Neutrino Alerts with the HAWC $γ$-Ray Observatory
topic	High Energy Astrophysical Phenomena
url	https://arxiv.org/abs/2602.16818