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A candidate super-Earth planet orbiting near the snow line of Barnard's star
(2018-11-15)
Barnard’s star is a red dwarf, and has the largest proper motion (apparent motion across the sky) of all known stars. At a distance of 1.8 parsecs, it is the closest single star to the Sun; only the three stars in the α ...
Primeval very low-mass stars and brown dwarfs - III. The halo transitional brown dwarfs
(2018-09-01)
We report the discovery of an esdL3 subdwarf, ULAS J020858.62+020657.0 and a usdL4.5 subdwarf, ULAS J230711.01+014447.1. They were identified as L subdwarfs by optical spectra obtained with the Gran Telescopio Canarias, ...