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arXiv · 2112.00674

HAWC Study of the Ultra-High-Energy Spectrum of MGRO J1908+06

HAWC Collaboration·A. Albert·R. Alfaro·C. Alvarez·J. D. Álvarez·J. R. Angeles Camacho·J. C. Arteaga-Velázquez·D. Avila Rojas·H. A. Ayala Solares·R. Babu·E. Belmont-Moreno·C. Brisbois·K. S. Caballero-Mora·T. Capistrán·A. Carramiñana·S. Casanova·U. Cotti·J. Cotzomi·S. Coutiño de León·E. De la Fuente·C. de León·R. Diaz Hernandez·B. L. Dingus·M. A. DuVernois·M. Durocher·J. C. Díaz-Vélez·K. Engel·C. Espinoza·K. L. Fan·K. Fang·M. Fernández Alonso·N. Fraija·D. Garcia·J. A. García-González·F. Garfias·G. Giacinti·H. Goksu·M. M. González·J. A. Goodman·J. P. Harding·J. Hinton·B. Hona·D. Huang·F. Hueyotl-Zahuantitla·P. Hüntemeyer·A. Iriarte·A. Jardin-Blicq·V. Joshi·S. Kaufmann·D. Kieda·W. H. Lee·J. Lee·H. León Vargas·J. T. Linnemann·A. L. Longinotti·G. Luis-Raya·K. Malone·V. Marandon·O. Martinez·J. Martínez-Castro·J. A. Matthews·P. Miranda-Romagnoli·J. A. Morales-Soto·E. Moreno·M. Mostafá·A. Nayerhoda·L. Nellen·M. Newbold·M. U. Nisa·R. Noriega-Papaqui·L. Olivera-Nieto·N. Omodei·A. Peisker·Y. Pérez Araujo·E. G. Pérez-Pérez·C. D. Rho·D. Rosa-González·H. Salazar·F. Salesa Greus·A. Sandoval·M. Schneider·H. Schoorlemmer·J. Serna-Franco·A. J. Smith·Y. Son·R. W. Springer·O. Tibolla·K. Tollefson·I. Torres·R. Torres-Escobedo·R. Turner·F. Ureña-Mena·L. Villaseñor·X. Wang·I. J. Watson·E. Willox·A. Zepeda·H. Zhou·M. Breuhaus H. Li·H. Zhang
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Abstract

We report TeV gamma-ray observations of the ultra-high-energy source MGRO J1908+06 using data from the High Altitude Water Cherenkov (HAWC) Observatory. This source is one of the highest-energy known gamma-ray sources, with emission extending past 200 TeV. Modeling suggests that the bulk of the TeV gamma-ray emission is leptonic in nature, driven by the energetic radio-faint pulsar PSR J1907+0602. Depending on what assumptions are included in the model, a hadronic component may also be allowed. Using the results of the modeling, we discuss implications for detection prospects by multi-messenger campaigns.

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HAWC Collaboration, A. Albert, R. Alfaro, C. Alvarez, J. D. Álvarez, J. R. Angeles Camacho, J. C. Arteaga-Velázquez, D. Avila Rojas, H. A. Ayala Solares, R. Babu, E. Belmont-Moreno, C. Brisbois, K. S. Caballero-Mora, T. Capistrán, A. Carramiñana, S. Casanova, U. Cotti, J. Cotzomi, S. Coutiño de León, E. De la Fuente, C. de León, R. Diaz Hernandez, B. L. Dingus, M. A. DuVernois, M. Durocher, J. C. Díaz-Vélez, K. Engel, C. Espinoza, K. L. Fan, K. Fang, M. Fernández Alonso, N. Fraija, D. Garcia, J. A. García-González, F. Garfias, G. Giacinti, H. Goksu, M. M. González, J. A. Goodman, J. P. Harding, J. Hinton, B. Hona, D. Huang, F. Hueyotl-Zahuantitla, P. Hüntemeyer, A. Iriarte, A. Jardin-Blicq, V. Joshi, S. Kaufmann, D. Kieda, W. H. Lee, J. Lee, H. León Vargas, J. T. Linnemann, A. L. Longinotti, G. Luis-Raya, K. Malone, V. Marandon, O. Martinez, J. Martínez-Castro, J. A. Matthews, P. Miranda-Romagnoli, J. A. Morales-Soto, E. Moreno, M. Mostafá, A. Nayerhoda, L. Nellen, M. Newbold, M. U. Nisa, R. Noriega-Papaqui, L. Olivera-Nieto, N. Omodei, A. Peisker, Y. Pérez Araujo, E. G. Pérez-Pérez, C. D. Rho, D. Rosa-González, H. Salazar, F. Salesa Greus, A. Sandoval, M. Schneider, H. Schoorlemmer, J. Serna-Franco, A. J. Smith, Y. Son, R. W. Springer, O. Tibolla, K. Tollefson, I. Torres, R. Torres-Escobedo, R. Turner, F. Ureña-Mena, L. Villaseñor, X. Wang, I. J. Watson, E. Willox, A. Zepeda, H. Zhou, M. Breuhaus H. Li, H. Zhang. 2021-12-01. HAWC Study of the Ultra-High-Energy Spectrum of MGRO J1908+06. https://doi.org/10.3847/1538-4357%2Fac56e5

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