UCAC5: New Proper Motions using Gaia DR1

Abstract

New astrometric reductions of the US Naval Observatory CCD Astrograph Catalog (UCAC) all-sky observations were performed from first principles using the TGAS stars in the 8 to 11 magnitude range as reference star catalog. Significant improvements in the astrometric solutions were obtained and the UCAC5 catalog of mean positions at a mean epoch near 2001 was generated. By combining UCAC5 with Gaia DR1 data new proper motions on the Gaia coordinate system for over 107 million stars were obtained with typical accuracies of 1 to 2 mas/yr (R = 11 to 15 mag), and about 5 mas/yr at 16th mag. Proper motions of most TGAS stars are improved over their Gaia data and the precision level of TGAS proper motions is extended to many millions more, fainter stars. External comparisons were made using stellar cluster fields and extragalactic sources. The TGAS data allow us to derive the limiting precision of the UCAC x,y data, which is significantly better than 1/100 pixel.

15 pages, 15 figures, 3 tables, accepted by AJ

References in corpus (3)

• The Gaia mission
• Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties
• Gaia Data Release 1: Astrometry - one billion positions, two million proper motions and parallaxes

Cited by in corpus (30)

• Target Selection for the SDSS-IV APOGEE-2 Survey
• The L 98-59 System: Three Transiting, Terrestrial-Sized Planets Orbiting a Nearby M-dwarf
• Zodiacal Exoplanets in Time (ZEIT) VI: a three-planet system in the Hyades cluster including an Earth-sized planet
• Atypical Mg-poor Milky Way field stars with globular cluster second-generation like chemical patterns
• The Hawaii Infrared Parallax Program. IV. A Comprehensive Parallax Survey of L0-T8 dwarfs with UKIRT
• An Eccentric Massive Jupiter Orbiting a Sub-Giant on a 9.5 Day Period Discovered in the Transiting Exoplanet Survey Satellite Full Frame Images
• ACRONYM III: Radial Velocities for 336 Candidate Young Low-Mass Stars in the Solar Neighborhood, Including 78 Newly Confirmed Young Moving Group Members
• A Survey For Planetary-mass Brown Dwarfs in the Taurus and Perseus Star-forming Regions
• SPHERE dynamical and spectroscopic characterization of HD142527B
• Proper motions in the VVV Survey: Results for more than 15 million stars across NGC 6544
• ESO452-SC11: The lowest mass globular cluster with a potential chemical inhomogeneity
• Spectroscopic membership for the populous 300 Myr-old open cluster NGC 3532
• The large Trans-Neptunian Object 2002 TC${}_{302}$ from combined stellar occultation, photometry and astrometry data
• Clusterix 2.0. A Virtual Observatory tool to estimate cluster membership probability
• K2-288Bb: A Small Temperate Planet in a Low-mass Binary System Discovered by Citizen Scientists
• Very Low-Mass Stars and Brown Dwarfs in Upper Scorpius using Gaia DR1: Mass Function, Disks and Kinematics
• The Rotation and Other Properties of Comet 49P/Arend-Rigaux, 1984 - 2012
• The universality of the rapid neutron-capture process revealed by a possible disrupted dwarf galaxy star
• Detailed chemical abundance analysis of the thick disk star cluster Gaia 1
• The SOUL view of IRAS20126+4104. Kinematics and variability of the H${}_2$ jet from a massive protostar
• Spectroscopic confirmation of the low-latitude object FSR 1716 as an old globular cluster
• Magnetic field geometry and chemical abundance distribution of the He-strong star CPD -57 3509
• Astrometry with PRAIA
• Understanding Fomalhaut as a Cooper pair
• Changing look AGN Mrk 590: Broad line region and black hole mass from photometric reverberation mapping
• VLT/MUSE and ATCA observations of the host galaxy of the short GRB 080905A at z=0.122
• An astrometric and spectroscopic study of the $\delta$ Scuti variable HD21190 and its wide companion CPD -83${}^{\circ }$ 64B
• HST/FGS Trigonometric Parallaxes of M-dwarf Eclipsing Binaries
• A search for peculiar stars in the open cluster Hogg 16
• VLBI astrometry on the white dwarf pulsar AR Scorpii