Browsing Faculty of Natural and Agricultural Sciences by Subject "Gravitational lensing: strong"
Now showing items 1-2 of 2
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Gravitational light-bending prevents γγ absorption in gravitational lenses
(EDP Sciences, 2016)The magnification effect that is due to gravitational lensing enhances the chances of detecting moderate-redshift (z ~ 1) sources in very high-energy (VHE; E > 100 GeV) γ-rays by ground-based atmospheric Cherenkov telescope ... -
H.E.S.S. observations of the flaring gravitationally lensed galaxy PKS 1830-211
(Oxford Univ Press, 2019)PKS 1830–211 is a known macrolensed quasar located at a redshift of z = 2.5. Its high-energy gamma-ray emission has been detected with the Fermi-Large Area Telescope (LAT) instrument and evidence for lensing was obtained ...