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Possible detection of gamma rays from Epsilon Eridani
Alexander H. Riley, Louis E. Strigari, Troy A. Porter +4
We use the Fermi-LAT gamma-ray observatory to search for gamma-ray emission from four nearby, debris disk-hosting main sequence stars: Ceti, Eridani, Fomalhaut, and Vega. F…
Galactic PeVatrons and helping to find them: Effects of Galactic absorption on the observed spectra of very high energy -ray sources
Troy A. Porter, Gavin P. Rowell, Gudlaugur Johannesson +1
Identification of the cosmic-ray (CR) `PeVatrons', which are sources capable of accelerating particles to eV energies and higher, may lead to resolving the long-stand…
Multi-messenger observations of a flaring blazar coincident with high-energy neutrino IceCube-170922A
The IceCube, Fermi-LAT, MAGIC +13
Individual astrophysical sources previously detected in neutrinos are limited to the Sun and the supernova 1987A, whereas the origins of the diffuse flux of high-energy cosmic neut…
Deciphering the local Interstellar spectra of primary cosmic ray species with HelMod
M. J. Boschini, S. Della Torre, M. Gervasi +11
Local interstellar spectra (LIS) of primary cosmic ray (CR) nuclei, such as helium, oxygen, and mostly primary carbon are derived for the rigidity range from 10 MV to ~200 TV using…
Einstein@Home discovers a radio-quiet gamma-ray millisecond pulsar
C. J. Clark, H. J. Pletsch, J. Wu +18
Millisecond pulsars (MSPs) are old neutron stars that spin hundreds of times per second and appear to pulsate as their emission beams cross our line of sight. To date, radio pulsat…
The Three-Dimensional Spatial Distribution of Interstellar Gas in the Milky Way: Implications for Cosmic Rays and High-Energy Gamma-Ray Emissions
Gudlaugur Johannesson, Troy A. Porter, Igor V. Moskalenko
Direct measurements of cosmic ray (CR) species combined with observations of their associated gamma-ray emissions can be used to constrain models of CR propagation, trace the struc…