Results 61 to 70 of about 10,502,106 (355)

Supernova Remnants with Fermi Large Area Telescope

open access: yesEPJ Web of Conferences, 2017
The Large Area Telescope (LAT), on-board the Fermi satellite, proved to be, after 8 years of data taking, an excellent instrument to detect and observe Supernova Remnants (SNRs) in a range of energies running from few hundred MeV up to few hundred GeV ...
Caragiulo M., Di Venere L.
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

Searching for Dark Matter Annihilation from Milky Way Dwarf Spheroidal Galaxies with Six Years of Fermi Large Area Telescope Data. [PDF]

open access: yesPhysical Review Letters, 2015
The dwarf spheroidal satellite galaxies (dSphs) of the Milky Way are some of the most dark matter (DM) dominated objects known. We report on γ-ray observations of Milky Way dSphs based on six years of Fermi Large Area Telescope data processed with the ...
M. Ackermann   +125 more
semanticscholar   +1 more source

The Anti-Coincidence Detector for the GLAST Large Area Telescope [PDF]

open access: yes, 2007
This paper describes the design, fabrication and testing of the Anti-Coincidence Detector (ACD) for the Gamma-ray Large Area Space Telescope (GLAST) Large Area Telescope (LAT).
Amato, M. J.   +7 more
core   +4 more sources

Status of the Large Size Telescopes of the Cherenkov Telescope Array [PDF]

open access: yesInternational Conference on Rebooting Computing, 2019
The Cherenkov Telescope Array (CTA) will consist of two arrays of Imaging Atmospheric Cherenkov Telescopes (IACTs) at the northern and southern hemispheres.
J. Cortina
semanticscholar   +1 more source

Design and Preliminary Ground Experiment for Robotic Assembly of a Modular Space Telescope

open access: yesIEEE Access, 2019
Large-aperture space telescope is the key equipment for studying the origin and evolution of the universe and various celestial bodies. Developing large-aperture space telescope is challenging and has become a priority in the field of optical engineering.
Zainan Jiang   +4 more
doaj   +1 more source

Cosmic-ray electron-positron spectrum from 7 GeV to 2 TeV with the Fermi Large Area Telescope [PDF]

open access: yes, 2017
We present a measurement of the cosmic-ray electron+positron spectrum between 7 GeV and 2 TeV performed with almost seven years of data collected with the Fermi Large Area Telescope.
S. Abdollahi   +98 more
semanticscholar   +1 more source

Wind buffeting of large telescopes [PDF]

open access: yesApplied Optics, 2010
Unsteady wind loads due to turbulence within the telescope enclosure are one of the largest dynamic disturbances for ground-based optical telescopes. The desire to minimize the response to the wind influences the design of the telescope enclosure, structure, and control systems.
MacMynowski, Douglas G.   +1 more
openaire   +3 more sources

Cosmology with the Large Synoptic Survey Telescope: an overview [PDF]

open access: yesReports on progress in physics. Physical Society, 2017
The Large Synoptic Survey Telescope (LSST) is a high étendue imaging facility that is being constructed atop Cerro Pachón in northern Chile. It is scheduled to begin science operations in 2022.
H. Zhan, J. Anthony Tyson
semanticscholar   +1 more source

Large Synoptic Survey Telescope: From science drivers to reference design [PDF]

open access: yesSerbian Astronomical Journal, 2008
In the history of astronomy, major advances in our understanding of the Universe have come from dramatic improvements in our ability to accurately measure astronomical quantities. Aided by rapid progress in information technology, current sky surveys are
Ivezić Ž.   +19 more
doaj   +3 more sources

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