Search for Very High-energy Gamma Rays from the Northern Fermi Bubble Region with HAWC

Authors

• A. U. Abeysekara, The University of Utah
• A. Albert, Los Alamos National Laboratory
• R. Alfaro, Universidad Nacional Autónoma de México
• C. Alvarez, Universidad Autónoma de Chiapas
• J. D. Alvarez, Universidad Michoacana de San Nicolás de Hidalgo
• R. Arceo, Universidad Autónoma de Chiapas
• J. C. Arteaga-Velázquez, Universidad Michoacana de San Nicolás de Hidalgo
• H. A. Ayala Solares, Michigan Technological University
• A. S. Barber, The University of Utah
• N. Bautista-Elivar, Universidad Politécnica de Pachuca
• A. Becerril, Universidad Nacional Autónoma de México
• E. Belmont-Moreno, Universidad Nacional Autónoma de México
• S. Y. BenZvi, University of Rochester
• D. Berley, University of Maryland
• J. Braun, University of Wisconsin-Madison
• C. Brisbois, Michigan Technological University
• K. S. Caballero-Mora, Universidad Autónoma de Chiapas
• T. Capistrán, Instituto Nacional de Astrofisica Optica y Electronica
• A. Carraminana, Instituto Nacional de Astrofisica Optica y Electronica
• S. Casanova, Henryk Niewodniczanski Institute of Nuclear Physics of the Polish Academy of Sciences
• M. Castillo, Universidad Michoacana de San Nicolás de Hidalgo
• U. Cotti, Universidad Michoacana de San Nicolás de Hidalgo
• J. Cotzomi, Benemerita Universidad Autonoma de Puebla
• S. Coutino De León, Instituto Nacional de Astrofisica Optica y Electronica
• C. De León, Benemerita Universidad Autonoma de Puebla
• E. De La Fuente, Universidad de Guadalajara
• R. Diaz Hernandez, Instituto Nacional de Astrofisica Optica y Electronica
• B. L. Dingus, Los Alamos National Laboratory
• M. A. Duvernois, University of Wisconsin-Madison
• J. C. Diaz-Vélez, Universidad de Guadalajara
• R. W. Ellsworth, George Mason University, Fairfax Campus
• K. Engel, University of Maryland

Document Type

Article

Publication Date

6-20-2017

Abstract

© 2017. The American Astronomical Society. All rights reserved. We present a search for very high-energy gamma-ray emission from the Northern Fermi Bubble region using data collected with the High Altitude Water Cherenkov gamma-ray observatory. The size of the data set is 290 days. No significant excess is observed in the Northern Fermi Bubble region, so upper limits above 1 TeV are calculated. The upper limits are between and . The upper limits disfavor a proton injection spectrum that extends beyond 100 TeV without being suppressed. They also disfavor a hadronic injection spectrum derived from neutrino measurements.

Publication Title

Astrophysical Journal

Recommended Citation

Abeysekara, A., Albert, A., Alfaro, R., Alvarez, C., Alvarez, J., Arceo, R., Arteaga-Velázquez, J., Ayala Solares, H., Barber, A., Bautista-Elivar, N., Becerril, A., Belmont-Moreno, E., BenZvi, S., Berley, D., Braun, J., Brisbois, C., Caballero-Mora, K., Capistrán, T., Carraminana, A., Casanova, S., Castillo, M., Cotti, U., Cotzomi, J., Coutino De León, S., De León, C., De La Fuente, E., Hernandez, R., Dingus, B., Duvernois, M., Diaz-Vélez, J., Ellsworth, R., & Engel, K. (2017). Search for Very High-energy Gamma Rays from the Northern Fermi Bubble Region with HAWC. Astrophysical Journal, 842(2). http://doi.org/10.3847/1538-4357/aa751a
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/14142