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Showing 1–3 of 3 results
Advanced filters: Author: Alessandro Paggi Clear advanced filters

  • Polarization measurements are reported for the blazar Mk501, revealing a degree of X-ray polarization that is more than twice the optical value and supporting the shock-accelerated energy-stratified electron population scenario.

    • Ioannis Liodakis
    • Alan P. Marscher
    • Silvia Zane
    ResearchOpen Access
    Nature
    Volume: 611, P: 677-681

  • The CMS Collaboration reports the measurement of the spin, parity, and charge conjugation properties of all-charm tetraquarks, exotic fleeting particles formed in proton–proton collisions at the Large Hadron Collider.

    • A. Hayrapetyan
    • V. Makarenko
    • A. Snigirev
    ResearchOpen Access
    Nature
    Volume: 648, P: 58-63

  • In June 2022, the IXPE satellite observed a shock passing through the jet of active galaxy Markarian 421. The rotation of the X-ray-polarized radiation over a 5-day period revealed that the jet contains a helical magnetic field.

    • Laura Di Gesu
    • Herman L. Marshall
    • Silvia Zane
    Research
    Nature Astronomy
    Volume: 7, P: 1245-1258