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Showing 1–7 of 7 results
Advanced filters: Author: Manisha Caleb Clear advanced filters

  • Using the MeerKAT radio telescope, the authors have discovered a neutron star with an ultra-long spin period of 76 s. Though it resides in the neutron star graveyard, it emits radio waves and challenges our understanding of neutron star evolution.

    • Manisha Caleb
    • Ian Heywood
    • Rob Fender
    Research
    Nature Astronomy
    Volume: 6, P: 828-836

  • A long-period radio transient with coincident radio and X-ray emission and observational properties unlike any known Galactic object has been observed by the Australian Square Kilometre Array Pathfinder.

    • Ziteng Wang
    • Nanda Rea
    • Nithyanandan Thyagarajan
    Research
    Nature
    Volume: 642, P: 583-586

  • 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

  • To date, one repeating and many apparently non-repeating fast radio bursts have been detected. This dichotomy has driven discussions about whether fast radio bursts stem from a single population of sources or two or more different populations. Here we present the arguments for and against.

    • Manisha Caleb
    • Laura G. Spitler
    • Ben W. Stappers
    Comments & Opinion
    Nature Astronomy
    Volume: 2, P: 839-841

  • Coherent radio emission with a long (nearly 6.5 h) period has been detected from both magnetic poles of a rotating compact object, offering insights into the evolution and emission mechanism of compact radio transients.

    • Y. W. J. Lee
    • M. Caleb
    • Z. Wang
    Research
    Nature Astronomy
    Volume: 9, P: 393-405

  • 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

  • A radio-loud magnetar, XTE J1810–197, has been observed to precess shortly after an X-ray outburst. The precession decayed over the subsequent few months, which probably rules out freely precessing magnetars as the source of the fast radio bursts.

    • Gregory Desvignes
    • Patrick Weltevrede
    • Jérôme Pétri
    ResearchOpen Access
    Nature Astronomy
    Volume: 8, P: 617-627