JWST observations of the nearby cool Y-dwarf WISE 0855-0714 reveal deuterated methane

25. 11. 2024

JWST observations of the nearby cool Y-dwarf WISE 0855-0714 reveal deuterated methane

Star system: WISE 0855-0714 | Distance from the Sun: 7.3 light years

Phosphine was also detected at a part-per-billion level, hinting at complex chemistry.

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Scientific study

Protosolar D-to-H abundance and one part-per-billion PH3 in the coldest brown dwarf external link

Stars mentioned

WISE 0855-0714

Y2, Sub-brown dwarf

mass: 0.01 M☉

radius: 0.04 R☉

distance: 7.3 ly

stars in the system: 1

exoplanets: 0

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