Results 11 to 20 of about 20,211 (230)

Gamma-ray Emission from Globular Clusters [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2016
Over the last few years, the data obtained using the Large Area Telescope (LAT) aboard the Fermi Gamma-ray Space Telescope has provided new insights on high-energy processes in globular clusters, particularly those involving compact objects such as ...
Pak-Hin T. Tam   +2 more
doaj   +4 more sources

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

open access: bronzeThe 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 ...
Truong Le   +3 more
openalex   +3 more sources

A 34.5 day quasi-periodic oscillation in γ-ray emission from the blazar PKS 2247–131 [PDF]

open access: yesNature Communications, 2018
PKS 2247–131 is an active galaxy that has been emitting gamma-ray flares since October 2016. Here, the authors used data obtained with the Fermi Gamma-ray Space Telescope to find that PKS 2247–131 presents a relatively short, month-like flux oscillation ...
Jianeng Zhou   +7 more
doaj   +2 more sources

Source detection using a 3D sparse representation: application to the Fermi gamma-ray space telescope [PDF]

open access: bronzeAstronomy & Astrophysics, 2009
The multiscale variance stabilization Transform (MSVST) has recently been proposed for Poisson data denoising. This procedure, which is nonparametric, is based on thresholding wavelet coefficients. We present in this paper an extension of the MSVST to 3D data (in fact 2D-1D data) when the third dimension is not a spatial dimension, but the wavelength ...
J. L. Starck   +8 more
openalex   +5 more sources

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

open access: greenAstroparticle Physics, 2011
20 pages, 12 figures, to be published in Astroparticle ...
D. J. Thompson, L. Baldini, Y. Uchiyama
openalex   +5 more sources

Gamma Ray Bursts and the Fermi Gamma Ray Space Telescope: Notes to the La Plata Lectures [PDF]

open access: green, 2008
33 pages; notes to a series of 5 one-hour lectures given at the First La Plata School in Astrophysics and Geophysics, La Plata, Argentina, March 10 - 14 ...
C. D. Dermer, Chris L. Fryer
openalex   +3 more sources

FERMI GAMMA-RAY SPACE TELESCOPEOBSERVATIONS OF GAMMA-RAY OUTBURSTS FROM 3C 454.3 IN 2009 DECEMBER AND 2010 APRIL [PDF]

open access: bronzeThe Astrophysical Journal, 2010
The flat spectrum radio quasar 3C 454.3 underwent an extraordinary outburst in 2009 December when it became the brightest gamma-ray source in the sky for over 1 week. Its daily flux measured with the Fermi-Large Area Telescope at photon energiesE > 100 MeV reached F-100 = 22 +/- 1 x 10(6) photon cm(-2) s(-1), representing the highest daily flux of any ...
M. Ackermann   +99 more
openalex   +9 more sources

Fermi Gamma-ray Space Telescope: high-energy results from the first year [PDF]

open access: greenReports on Progress in Physics, 2010
39 pages, 16 ...
P. F. Michelson, W. B. Atwood, S. Ritz
openalex   +4 more sources

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