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Discovery of very high energy gamma rays from PKS 1424+240 and multiwavelength constraints on its redshift
The VERITAS Collaboration, V. A. Acciari, The Fermi Collaboration +4
We report the first detection of very-high-energy (VHE) gamma-ray emission above 140 GeV from PKS 1424+240, a BL Lac object with an unknown redshift. The photon spectrum above 140…
Fermi Large Area Telescope Gamma-Ray Detection of the Radio Galaxy M87
The Fermi LAT Collaboration, A. A. Abdo, D. E. Harris +2
We report the Fermi-LAT discovery of high-energy (MeV/GeV) gamma-ray emission positionally consistent with the center of the radio galaxy M87, at a source significance of over 10 s…
Swift and Fermi observations of the early afterglow of the short Gamma-Ray Burst 090510
M. De Pasquale, P. Schady, N. P. M. Kuin +11
We present the observations of GRB090510 performed by the Fermi Gamma-Ray Space Telescope and the Swift observatory. This is a bright, short burst that shows an extended emission d…
Fermi-LAT Discovery of Extended Gamma-ray Emission in the Direction of Supernova Remnant W51C
Fermi LAT collaboration
The discovery of bright gamma-ray emission coincident with supernova remnant (SNR) W51C is reported using the Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescop…
Fermi Observations of high-energy gamma-ray emissions from GRB 080916C
Hiroyasu Tajima
Observations of the long-duration Gamma-Ray Burst GRB 080916C by the Fermi Gamma-ray Burst Monitor and Large Area Telescope show that it has a single spectral form from 8 keV to 13…
Pulsed Gamma-rays from PSR J2021+3651 with the Fermi Large Area Telescope
A. A. Abdo
We report the detection of pulsed gamma-rays from the young, spin-powered radio pulsar PSR J2021+3651 using data acquired with the Large Area Telescope (LAT) on the Fermi Gamma-ray…