Comparison of Gaia DR2 Parallaxes of Stars with VLBI Astrometry

Abstract

We compare the parallaxes of stars from VLBI astrometry in the literature to those in the Gaia DR2 catalog. Our full sample contains young stellar objects, evolved AGB stars, pulsars and other radio stars. Excluding AGB stars, which show significant discrepancies between Gaia and VLBI parallaxes, and stars in binary systems, we obtain an average, systematic, parallax offset of $-75\pm 29\mu$as for Gaia DR2, consistent with their estimate of a parallax zero-point between $-100$ and 0 $\mu$as.

Accepted by ApJ

References in corpus (14)

• The Gould's Belt Distances Survey (GOBELINS) II. Distances and structure towards the Orion Molecular Clouds
• VLBA determination of the distance to nearby star-forming regions I. The distance to T Tauri with 0.4% accuracy
• The Gould's Belt Distances Survey (GOBELINS) I. Trigonometric parallax distances and depth of the Ophiuchus complex
• A VLBI Resolution of the Pleiades Distance Controversy
• The Gould's Belt Distances Survey (GOBELINS) III. The distance to the Serpens/Aquila Molecular Complex
• Extremely high precision VLBI astrometry of PSR J0437-4715 and implications for theories of gravity
• Mapping Spiral Structure on the far side of the Milky Way
• Improved VLBI astrometry of OH maser stars
• Pre-maximum spectro-imaging of the Mira star T Lep with AMBER/VLTI
• The Distance and Size of the Red Hypergiant NML Cyg from VLBA and VLA Astrometry
• Parallax of a Mira variable R Ursae Majoris studied with astrometric VLBI
• VLBI Astrometry of AGB Variables with VERA -- A Mira Type Variable T Lepus
• VLBI Observations of H2O Maser Annual Parallax and Proper Motion in IRAS 20143+3634: Reflection on the Galactic Constants
• Physical properties and astrometry of radio-emitting brown dwarf TVLM513-46546 revisited

Cited by in corpus (18)

• Distance estimates for AGB stars from parallax measurements
• The parallax zero point offset from Gaia EDR3 data
• Precise radio astrometry and new developments for the next generation of instruments
• The period--luminosity relation for Mira variables in the Milky Way using Gaia DR3: a further distance anchor for $H_0$
• Analysing the spectral energy distributions of Galactic classical Cepheids
• Exploring the differences of integrated and spatially resolved analysis using integral field unit data: The case of Abell 14
• Flying far and fast: the distribution of distant hypervelocity star candidates from Gaia DR2 data
• Distance mapping applied to four well-known planetary nebulae and a nova shell
• A VLBA Survey of radio stars in the Orion Nebula Cluster: II. Astrometry
• Two New Nova Shells associated with V4362 Sagittarii and DO Aquilae
• Unity and Diversity of Yellow Hypergiants Family
• Asymmetric distributions of H2O and SiO masers towards V627 Cas
• Mapping circumstellar magnetic fields of late-type evolved stars with the Goldreich-Kylafis effect: CARMA observations at $\lambda 1.3$ mm of R Crt and R Leo
• Dynamical masses for the Pleiades binary system HII-2147
• Near-Infrared Variability of Low Mass Stars in IC 1396A and TR 37
• Link between the Optical and Radio Frames from Gaia DR3 Data and VLBI Measurements
• VLBI astrometry on the white dwarf pulsar AR Scorpii
• BCD spectrophotometry for massive stars in transition phases