Results 31 to 40 of about 26,003 (179)

Cosmic ray studies with the Fermi Gamma-ray Space Telescope Large Area Telescope [PDF]

open access: yesAstroparticle Physics, 2012
20 pages, 12 figures, to be published in Astroparticle ...
D. Thompson, L. Baldini, Y. Uchiyama
semanticscholar   +5 more sources

Identification of Gamma-Ray Point Sources in Fermi-LAT Data with Minimum Spanning Tree Algorithm [PDF]

open access: yesIranian Journal of Astronomy and Astrophysics, 2023
Gamma rays are the most energetic photons in the electromagnetic spectrum, detected with ground-based and space-based detectors in different energy ranges from sources in our galaxy and beyond.
Mehran Soor   +2 more
doaj   +1 more source

GRAINE project: precise gamma-ray observations with balloon-borne emulsion telescope [PDF]

open access: yesEPJ Web of Conferences, 2019
Observation of cosmic gamma rays is important in the understanding of high-energy objects or phenomena in the universe. Since 2008, the Large Area Telescope onboard the Fermi Gamma-ray Space Telescope (Fermi-LAT) has surveyed the sub-GeV/GeV gamma-ray ...
Rokujo Hiroki
doaj   +1 more source

γ-Ray and ultra-high energy neutrino background suppression due to solar radiation

open access: yesPhysics Letters B, 2023
The Sun emits copious amounts of photons and neutrinos in an approximately spatially isotropic distribution. Diffuse γ-rays and ultra-high energy (UHE) neutrinos from extragalactic sources may subsequently interact and annihilate with the emitted solar ...
Shyam Balaji
doaj   +1 more source

DISCOVERY OF PULSATIONS FROM THE PULSAR J0205+6449 IN SNR 3C 58 WITH THE FERMI GAMMA-RAY SPACE TELESCOPE [PDF]

open access: yesAstrophysical Journal, 2009
We report the discovery of γ-ray pulsations (≥ 0.1 GeV) from the young radio and X-ray pulsar PSR J0205+6449 located in the Galactic supernova remnant 3C 58.
A. Abdo   +183 more
semanticscholar   +2 more sources

GAMMA-RAY BURST PREDICTIONS FOR THEFERMI GAMMA RAY SPACE TELESCOPE [PDF]

open access: yesThe Astrophysical Journal, 2009
9 pages, 6 figures, Accepted for publication in ApJ; this version contains an additional section that discusses the fluence estimates and uncertainties for EGRET ...
Charles D. Dermer, Truong Le
openaire   +4 more sources

Explaining the GeV excess with exploding black holes

open access: yesPhysics Letters B, 2023
Black holes may form in present-day collapse of microscopic structures of dark matter. We show that, if microstructure black holes (MSBH) with mass m∼1013 g are produced, the spectrum of gamma rays from their evaporation agrees remarkably well with the ...
Zachary S.C. Picker, Alexander Kusenko
doaj   +1 more source

Exclusion of canonical weakly interacting massive particles by joint analysis of Milky Way dwarf galaxies with data from the Fermi Gamma-Ray Space Telescope. [PDF]

open access: yesPhysical Review Letters, 2011
Dwarf spheroidal galaxies are known to be excellent targets for the detection of annihilating dark matter. We present new limits on the annihilation cross section of weakly interacting massive particles based on the joint analysis of seven Milky Way ...
A. Geringer-Sameth, S. Koushiappas
semanticscholar   +1 more source

The Third Fermi Large Area Telescope Catalog of Gamma-Ray Pulsars

open access: yesThe Astrophysical Journal, 2023
We present 294 pulsars found in GeV data from the Large Area Telescope (LAT) on the Fermi Gamma-ray Space Telescope. Another 33 millisecond pulsars (MSPs) discovered in deep radio searches of LAT sources will likely reveal pulsations once phase-connected
D. A. Smith   +170 more
doaj   +1 more source

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