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TeV gamma-rays and neutrinos from photo-disintegration of nuclei in Cygnus OB2
Luis A. Anchordoqui, John F. Beacom, Haim Goldberg +2
TeV gamma-rays may provide significant information about high energy astrophysical accelerators. Such gamma-rays can result from the photo-de-excitation of PeV nuclei after their p…
TeV gamma-rays from photo-disintegration/de-excitation of cosmic-ray nuclei
Luis A. Anchordoqui, John F. Beacom, Haim Goldberg +2
It is commonly assumed that high-energy gamma-rays are made via either purely electromagnetic processes or the hadronic process of pion production, followed by decay. We investigat…
Cosmic Neutrino Bound on the Dark Matter Annihilation Rate in the Late Universe
John F. Beacom
How large can the dark matter self-annihilation rate in the late universe be? This rate depends on (rho_DM/m_chi)^2 <sigma_A v>, where rho_DM/m_chi is the number density of dark ma…
The Advanced Compton Telescope Mission
Steven E. Boggs, James Kurfess, James Ryan +30
The Advanced Compton Telescope (ACT), the next major step in gamma-ray astronomy, will probe the fires where chemical elements are formed by enabling high-resolution spectroscopy o…
Upper Bound on the Dark Matter Total Annihilation Cross Section
John F. Beacom, Nicole F. Bell, Gregory D. Mack
We consider dark matter annihilation into Standard Model particles and show that the least detectable final states, namely neutrinos, define an upper bound on the total cross secti…
Guaranteed and Prospective Galactic TeV Neutrino Sources
Matthew D. Kistler, John F. Beacom
Recent observations, particularly from the HESS Collaboration, have revealed rich Galactic populations of TeV gamma-ray sources, including a collection unseen in other wavelengths.…