4.1k citations · 34.9k across the 175 of their papers we have counts for
11 papers · 2 filters
A -ray determination of the Universe's star-formation history
LAT Collaboration, M. Ajello, K. Helgason +4
The light emitted by all galaxies over the history of the Universe produces the extragalactic background light (EBL) at ultraviolet, optical, and infrared wavelengths. The EBL is a…
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…
VERITAS and Fermi-LAT observations of new HAWC sources
VERITAS Collaboration, A. U. Abeysekara, A. Archer +280
The HAWC (High Altitude Water Cherenkov) collaboration recently published their 2HWC catalog, listing 39 very high energy (VHE; >100~GeV) gamma-ray sources based on 507 days of obs…
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…
Low-energy electrons in GRB afterglow models
Guðlaugur Jóhannesson, Gunnlaugur Björnsson
Observations of gamma-ray burst (GRB) afterglows have long provided the most detailed information about the origin of this spectacular phenomena. The model that is most commonly us…
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…
Search for Spatial Extension in High-Latitude Sources Detected by the Fermi Large Area Telescope
LAT Collaboration, Jonathan Biteau
We present a search for spatial extension in high-latitude () sources in recent Fermi point source catalogs. The result is the Fermi High-Latitude Extended Sources Cat…
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…
Search for Gamma-Ray Emission from Local Primordial Black Holes with the Fermi Large Area Telescope
LAT Collaboration
Black holes with masses below approximately g are expected to emit gamma rays with energies above a few tens of MeV, which can be detected by the Fermi Large Area Telesco…
HelMod in the works: from direct observations to the local interstellar spectrum of cosmic-ray electrons
M. J. Boschini, S. Della Torre, M. Gervasi +11
The local interstellar spectrum (LIS) of cosmic-ray (CR) electrons for the energy range 1 MeV to 1 TeV is derived using the most recent experimental results combined with the state…