3 papers
astro-ph.SR2026
Parallaxes, Proper Motions, and Near-Infrared Photometry for 173 L and T Dwarfs From The US Naval Observatory Infrared Astrometry Program
Frederick J. Vrba, Adam C. Schneider, Jeffrey A. Munn +11
We present near-infrared parallax and proper motion astrometry for 74 L-dwarfs and 99 T-dwarfs, as single objects or in binary systems, obtained with the ASTROCAM astrometric image…
astro-ph.GA2025
The Second and Third Data Releases from the UKIRT Hemisphere Survey
Adam C. Schneider, Frederick J. Vrba, Justice Bruursema +16
This paper describes the second and third data releases (DR2 and DR3, respectively) from the ongoing United Kingdom Infrared Telescope (UKIRT) Hemisphere Survey (UHS). DR2 is prima…
astro-ph.SR2022
Substellar Hyades Candidates from the UKIRT Hemisphere Survey
Adam C. Schneider, Frederick J. Vrba, Jeffrey A. Munn +14
We have used data from the UKIRT Hemisphere Survey (UHS) to search for substellar members of the Hyades cluster. Our search recovered several known substellar Hyades members, and t…