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Showing 1–3 of 3 results
Advanced filters: Author: G. Vittorini Clear advanced filters

  • Super-massive black holes in active galaxies can accelerate particles to relativistic energies, producing jets with associated γ-ray emission. Galactic 'microquasars' also produce relativistic jets; however, apart from an isolated event detected in Cygnus X-1, there has hitherto been no systematic evidence for the acceleration of particles to gigaelectronvolt or higher energies in a microquasar. Here, a report of four γ-ray flares with energies above 100 MeV from the microquasar Cygnus X-3 illuminates this important problem.

    • M. Tavani
    • A. Bulgarelli
    • L. Salotti
    Research
    Nature
    Volume: 462, P: 620-623

  • In April 2020, the AGILE satellite registered an X-ray burst temporally coincident with a radio burst from the Galactic magnetar SGR 1935+2154. As seen in hard X-rays, the burst was cut off above 80 keV and had an isotropically emitted energy of about 1040 erg.

    • M. Tavani
    • C. Casentini
    • F. D’Amico
    Research
    Nature Astronomy
    Volume: 5, P: 401-407

  • Many quantum protocols require fast, remote entanglement generation to outperform their classical counterparts. A modular solution is now reported, using trapped ions that are remotely entangled through photons.

    • D. Hucul
    • I. V. Inlek
    • C. Monroe
    Research
    Nature Physics
    Volume: 11, P: 37-42