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astro-ph.SR2025
J1250+0455AB an ultracool binary in a hierarchical triple system
Sayan Baig, R. L. Smart, Hugh R. A. Jones +7
We report the discovery of the ultracool dwarf binary system J1250+0455AB, a low-mass (M 0.2 M) system in which the components straddle the M/L dwa…
astro-ph.SR2025
The Gaia Ultracool Dwarf Sample -- VI. Spectral Types and Properties of 51 Ultracool Dwarfs
Gemma Cheng, H. R. A. Jones, R. L. Smart +7
Near-infrared spectra from the IRTF/SpeX and Blanco/ARCoIRIS telescope/instrument combinations are used for spectroscopic classification, to measure radial velocities and for the i…