publication . Article . Preprint . 2017

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

HAWC Collaboration; Abeysekara, A.; Albert, A.; Alfaro, R.; Alvarez, C.; Álvarez, J.; Arceo, R.; Arteaga-Velázquez, J.; Solares, H.; Barber, A.; ...
Open Access
  • Published: 16 Jun 2017 Journal: The Astrophysical Journal, volume 842, page 85 (eissn: 1538-4357, Copyright policy)
  • Publisher: American Astronomical Society
Abstract
We present a search of very high energy gamma-ray emission from the Northern $\textit{Fermi}$ Bubble region using data collected with the High Altitude Water Cherenkov (HAWC) gamma-ray observatory. The size of the data set is 290 days. No significant excess is observed in the Northern $\textit{Fermi}$ Bubble region, hence upper limits above $1\,\text{TeV}$ are calculated. The upper limits are between $3\times 10^{-7}\,\text{GeV}\, \text{cm}^{-2}\, \text{s}^{-1}\,\text{sr}^{-1}$ and $4\times 10^{-8}\,\text{GeV}\,\text{cm}^{-2}\,\text{s}^{-1}\,\text{sr}^{-1}$. The upper limits disfavor a proton injection spectrum that extends beyond $100\,\text{TeV}$ without being...
Subjects
arXiv: Astrophysics::High Energy Astrophysical PhenomenaComputer Science::Computation and Language (Computational Linguistics and Natural Language and Speech Processing)Computer Science::Information RetrievalHigh Energy Physics::Experiment
free text keywords: Space and Planetary Science, Astronomy and Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, HAWC - Abteilung Hinton, Astroparticle physics, Physics, Observatory, Bubble, Gamma ray, Proton, Astrophysics, Fermi Gamma-ray Space Telescope, Neutrino, Cherenkov radiation
24 references, page 1 of 2

Abeysekara, A., et al. 2013, Astroparticle Physics, 5052, 26

-. 2014, ApJ, 796, 108

Abeysekara, A. U., Albert, A., Alfaro, R., et al. 2017a, ArXiv e-prints

-. 2017b, ArXiv e-prints

Ackermann, M., Albert, A., et al. 2014, ApJ, 793, 64

Ahlers, M., BenZvi, S. Y., Desiati, P., et al. 2016, The Astrophysical Journal, 823, 10

Atkins, R., Benbow, W., Berley, D., et al. 2003, ApJ, 595, 803

Cheng, K. S., Chernyshov, D. O., Dogiel, V. A., & Ko, C. M. 2015, The Astrophysical Journal, 804

Cheng, K.-S., Chernyshov, D. O., Dogiel, V. A., Ko, C. M., & Ip, W. 2011, The Astrophysical Journal, 731, L17

Crocker, R. M., & Aharonian, F. 2011, Physical Review Letters, 106, 101102

Dobler, G., Finkbeiner, D. P., Cholis, I., Slatyer, T. R., & Weiner, N. 2010, ApJ, 717, 825

Fujita, Y., Ohira, Y., & Yamazaki, R. 2013, The Astrophysical Journal Letters, 775, 20

-. 2014, The Astrophysical Journal, 789

Gorski, K., Hivon, E., Banday, A., et al. 2005, ApJ, 622, 759

Guo, F., & Mathews, W. G. 2012, The Astrophysical Journal, 756, 181

24 references, page 1 of 2
Abstract
We present a search of very high energy gamma-ray emission from the Northern $\textit{Fermi}$ Bubble region using data collected with the High Altitude Water Cherenkov (HAWC) gamma-ray observatory. The size of the data set is 290 days. No significant excess is observed in the Northern $\textit{Fermi}$ Bubble region, hence upper limits above $1\,\text{TeV}$ are calculated. The upper limits are between $3\times 10^{-7}\,\text{GeV}\, \text{cm}^{-2}\, \text{s}^{-1}\,\text{sr}^{-1}$ and $4\times 10^{-8}\,\text{GeV}\,\text{cm}^{-2}\,\text{s}^{-1}\,\text{sr}^{-1}$. The upper limits disfavor a proton injection spectrum that extends beyond $100\,\text{TeV}$ without being...
Subjects
arXiv: Astrophysics::High Energy Astrophysical PhenomenaComputer Science::Computation and Language (Computational Linguistics and Natural Language and Speech Processing)Computer Science::Information RetrievalHigh Energy Physics::Experiment
free text keywords: Space and Planetary Science, Astronomy and Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, HAWC - Abteilung Hinton, Astroparticle physics, Physics, Observatory, Bubble, Gamma ray, Proton, Astrophysics, Fermi Gamma-ray Space Telescope, Neutrino, Cherenkov radiation
24 references, page 1 of 2

Abeysekara, A., et al. 2013, Astroparticle Physics, 5052, 26

-. 2014, ApJ, 796, 108

Abeysekara, A. U., Albert, A., Alfaro, R., et al. 2017a, ArXiv e-prints

-. 2017b, ArXiv e-prints

Ackermann, M., Albert, A., et al. 2014, ApJ, 793, 64

Ahlers, M., BenZvi, S. Y., Desiati, P., et al. 2016, The Astrophysical Journal, 823, 10

Atkins, R., Benbow, W., Berley, D., et al. 2003, ApJ, 595, 803

Cheng, K. S., Chernyshov, D. O., Dogiel, V. A., & Ko, C. M. 2015, The Astrophysical Journal, 804

Cheng, K.-S., Chernyshov, D. O., Dogiel, V. A., Ko, C. M., & Ip, W. 2011, The Astrophysical Journal, 731, L17

Crocker, R. M., & Aharonian, F. 2011, Physical Review Letters, 106, 101102

Dobler, G., Finkbeiner, D. P., Cholis, I., Slatyer, T. R., & Weiner, N. 2010, ApJ, 717, 825

Fujita, Y., Ohira, Y., & Yamazaki, R. 2013, The Astrophysical Journal Letters, 775, 20

-. 2014, The Astrophysical Journal, 789

Gorski, K., Hivon, E., Banday, A., et al. 2005, ApJ, 622, 759

Guo, F., & Mathews, W. G. 2012, The Astrophysical Journal, 756, 181

24 references, page 1 of 2
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