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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7 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.
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).
Reanalysis of 79 solar twins indicates the Sun's chemical peculiarity is largely explained by Galactic chemical evolution, with 2-6 candidates possibly showing planetary engulfment.
citing papers explorer
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WISE J072003.20-084651.2B Is A Massive T Dwarf
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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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.
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Classifying Cool Dwarfs: Comprehensive Spectral Typing of Field and Peculiar Dwarfs Using Machine Learning
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.
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Spectroscopic Follow-Up of Discoveries from the NEOWISE Proper Motion Survey
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.
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Primeval very low-mass stars and brown dwarfs -- VII. The discovery of the first wide M + L extreme subdwarf binary
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.
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Benchmark brown dwarfs -- I. A blue M2 + T5 wide binary and a probable young [M4 + M4] + [T7 + T8] hierarchical quadruple
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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The Sun's chemical peculiarity: disentangling Galactic chemical evolution and planetary engulfment in solar twins
Reanalysis of 79 solar twins indicates the Sun's chemical peculiarity is largely explained by Galactic chemical evolution, with 2-6 candidates possibly showing planetary engulfment.