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  • RESEARCH HIGHLIGHT

They’re a couple: JWST is first to spot pair of mysterious ‘Y dwarfs’

Two extremely cool examples of ‘failed stars’ called brown dwarfs are found orbiting each other.
A dark brown sphere with lighter bands seen against a starry sky.

The cosmic object called a Y dwarf (illustration) hovers at the boundary between planet and star. Credit: NASA/JPL-Caltech

The discovery of the first known pair of the mysterious celestial objects called Y dwarfs will help scientists understand how these elusive bodies form and evolve1.

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Nature 617, 226 (2023)

doi: https://doi.org/10.1038/d41586-023-01461-8

References

  1. Calissendorff, P. et al. Astrophys. J. 947, L30 (2023).

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