1103 parallaxes and proper motions from URAT Virtual Observatory Resource

Authors
  1. Finch C.T.
  2. Zacharias N.
  3. Published by
    CDS
Abstract

We present 1103 trigonometric parallaxes and proper motions from the United States Naval Observatory Robotic Astrometric Telescope (URAT) observations taken at the Naval Observatory Flagstaff Station (NOFS) over a three-year period from 2012 April to 2015 June covering the entire sky north of about -10{deg} decl. We selected two samples: previously suspected nearby stars from known photometric distances and stars showing a large, significant parallax signature in URAT epoch data without any prior selection criteria. All systems presented in this paper have an observed parallax {>=}40mas with no previous published trigonometric parallax. The formal errors on these weighted parallax solutions are mostly between 4 and 10mas. This sample gives a significant (of the order of 50%) increase to the number of known systems having a trigonometric parallax to be within 25pc of the Sun (without applying Lutz-Kelker bias corrections). A few of these are found to be within 10pc. Many of these new nearby stars display a total proper motion of less than 200mas/yr. URAT parallax results have been verified against Hipparcos and Yale data for stars in common. The publication of all significant parallax observations from URAT data is in preparation for CDS.

Keywords
  1. visible-astronomy
  2. trigonometric-parallax
  3. proper-motions
Bibliographic source Bibcode
2016AJ....151..160F
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/151/160
IVOA Identifier IVOID
ivo://CDS.VizieR/J/AJ/151/160
Document Object Identifer DOI
doi:10.26093/cds/vizier.51510160

Access

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https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/151/160
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/151/160
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/151/160
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https://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/151/160/stars?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/151/160/stars?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/151/160/stars?

History

2016-07-26T07:05:37Z
Resource record created
2016-07-26T07:05:37Z
Created
2018-08-24T08:02:29Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr