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Showing 1–12 of 12 results
Advanced filters: Author: B. W. Stappers Clear advanced filters

  • Long-period radio transients emit powerful polarized signals lasting minutes to an hour. The discovery of ASKAP J1935+2148, a source showing diverse emission modes that resemble neutron-star behaviour, challenges existing ideas of these phenomena.

    • M. Caleb
    • E. Lenc
    • B. W. Stappers
    ResearchOpen Access
    Nature Astronomy
    Volume: 8, P: 1159-1168

  • Radio pulses from a rare, radio-loud magnetar, XTE J1810−197, are seen to have undergone a conversion in their polarization state. This change can be linked to the magnetar’s magnetic field geometry, and has commonalities with an effect also seen in fast radio bursts.

    • Marcus E. Lower
    • Simon Johnston
    • Benjamin W. Stappers
    ResearchOpen Access
    Nature Astronomy
    Volume: 8, P: 606-616

  • The discovery of a long-period radio transient, GPM J1839–10, prompted a search of radio archives, thereby finding that this source has been repeating since at least 1988.

    • N. Hurley-Walker
    • N. Rea
    • A. Williams
    Research
    Nature
    Volume: 619, P: 487-490

  • Observations of repeated fast radio bursts, having dispersion measures and sky positions consistent with those of FRB 121102, show that the signals do not originate in a single cataclysmic event and may come from a young, highly magnetized, extragalactic neutron star.

    • L. G. Spitler
    • P. Scholz
    • W. W. Zhu
    Research
    Nature
    Volume: 531, P: 202-205

  • The second decade of fast radio burst (FRB) astronomy has started at pace, with detections of tens of new FRBs from newly operational facilities such as ASKAP and CHIME. Evan Keane looks forward to the upcoming years and the discoveries they will bring.

    • E. F. Keane
    Reviews
    Nature Astronomy
    Volume: 2, P: 865-872

  • Observations of a six-day-long radio transient following a fast radio burst have yielded the host galaxy’s redshift, which, combined with the dispersion measure, provides a direct measurement of the cosmic density of ionized baryons in the intergalactic medium including all of the so-called ‘missing baryons’.

    • E. F. Keane
    • S. Johnston
    • C. Bassa
    Research
    Nature
    Volume: 530, P: 453-456

  • High-resolution radio measurements of air showers—cascades of secondary particles in the atmosphere initiated by cosmic rays—reveal that cosmic rays with energies of 1017–1017.5 electronvolts have a mixed composition, with light elements (protons and helium nuclei) making up 80 per cent of their mass.

    • S. Buitink
    • A. Corstanje
    • J. A. Zensus
    Research
    Nature
    Volume: 531, P: 70-73