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Volume 8 Issue 3, March 2024

Four eyes see better than one

Two thousand hours of observations split between four 25–32 m telescopes have produced a comprehensive overview of the high-energy radio emission from repeating fast radio burst source FRB 20201124A. The burst characteristics resemble those of non-repeating burst sources, suggesting a link.

See Kirsten et al.

Image: D. Futselaar/ASTRON/Chalmers/IA NCU/Astropeiler e.V/CC BY 2.0. Cover design: Bethany Vukomanovic

Research Highlights

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News & Views

  • Binary neutron star mergers are complex to understand astrophysically. A small piece of the puzzle may now have been solved using a computationally intensive simulation to explain how short gamma-ray bursts can be launched by a magnetar engine.

    • Philipp Mösta
    News & Views
  • The size distribution of solid grains in dense clouds is a key parameter to constrain in order to understand grain growth, which influences the nature and timescale of the formation of protoplanets. A JWST study has quantified the grain size distribution by modelling the spectral absorptions arising from ice components of grains before protostellar collapse.

    • Burcu Günay
    News & Views
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Research Briefings

  • The Lyman-α emission line of hydrogen should be absorbed and thus not seen from galaxies in the early Universe — and yet it is observed. Now detailed images from JWST coupled with magnetohydrodynamical simulations show that interactions between galaxies are facilitating the escape of this radiation.

    Research Briefing
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Amendments & Corrections

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