activity
19992026
most citedThe Third US Naval Observatory CCD Astrograph Catalog (UCAC3)

353 citations · 730 across the 14 of their papers we have counts for

collaborators

14 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★ 6 cited

Accurate Ground-based Astrometry of Naked-eye Stars: The United States Naval Observatory Bright-Star Astrometric Database

Jeffrey A. Munn, John P. Subasavage, Hugh C. Harris +1

We present the United States Naval Observatory (USNO) Bright-Star Astrometric Database (UBAD), a current-epoch high-accuracy astrometric catalog. The catalog consists of 364 bright…

astro-ph.GA2020★ 18 cited

Near infrared and optical continuum emission region size measurements in the gravitationally lensed quasars Q0957+561 and SBS0909+532

Matthew A. Cornachione, Christopher W. Morgan, Hayden R. Burger +5

We present a microlensing analysis of updated light curves in three filters, --band, --band, and --band, for the gravitationally lensed quasars Q0957+561 and SBS0909+532.…

astro-ph.SR2018★ 24 cited

Distant White Dwarfs in the US Naval Observatory Flagstaff Station Parallax Sample

S. K. Leggett, P. Bergeron, John P. Subasavage +18

This paper presents new trigonometric parallaxes and proper motions for 214 stars. The measurements were made at the US Naval Observatory Flagstaff Station (NOFS) between 1989 and…

astro-ph.SR2018★ 10 cited

Distances of Dwarf Carbon Stars

Hugh C. Harris, Conard C. Dahn, John P. Subasavage +8

Parallaxes are presented for a sample of 20 nearby dwarf carbon stars. The inferred luminosities cover almost two orders of magnitude. Their absolute magnitudes and tangential velo…