For the nearby M9.5+T5.5 binary Scholz's star, a joint astrometric orbit fit gives individual dynamical masses of 99±6 and 66±4 Jupiter masses, making the T dwarf companion massive.
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8 Pith papers cite this work, alongside 49 external citations. Polarity classification is still indexing.
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A new SPHEREx-based spectral library doubles the sample of ultracool dwarfs with 0.75-5.0 micron spectrophotometry to 7402 objects and provides automated typing tools.
A K-nearest-neighbors model trained on noise-added standard spectra classifies M0-T9 cool dwarfs within one subtype 95.5% of the time and assigns gravity or metallicity class correctly 89.5% of the time on 1,300 held-out spectra.
A spectroscopic follow-up of 65 NEOWISE proper motion discoveries yields 60 new M, L, and T dwarf classifications, including 13 subdwarfs and three candidate T subdwarfs.
A wide binary composed of an M1 extreme subdwarf and an L0 extreme subdwarf has been discovered, and the standard CaH/TiO classification index is shown to overestimate metallicity for late-type M subdwarfs.
A uniform high-resolution abundance catalog of 32 FGK host stars of wide-separation brown dwarfs, with C/O, Mg/Si, Ca/Al, and [Y/Mg] ratios used to predict companion cloud chemistry and ages.
Discovery and characterization of L 122-88 AB, a wide M2 + T5 binary, and UPM J1040-3551 AB, a candidate hierarchical quadruple of two M4 dwarfs and two T dwarfs (T7 + T8).
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A SPHEREx Pipeline and Spectral Library for Ultracool Dwarfs
A new SPHEREx-based spectral library doubles the sample of ultracool dwarfs with 0.75-5.0 micron spectrophotometry to 7402 objects and provides automated typing tools.