Astrometry&photometry for late-type dwarfs&subdwarfs Virtual Observatory Resource

Authors
  1. Dahn C.C.
  2. Harris H.C.
  3. Subasavage J.P.
  4. Ables H.D.
  5. Canzian B.J.,Guetter H.H.
  6. Harris F.H.
  7. Henden A.H.
  8. Leggett S.K.
  9. Levine S.E.,Luginbuhl C.B.
  10. Monet A.B.
  11. Monet D.G.
  12. Munn J.A.
  13. Pier J.R.
  14. Stone R.C.,Vrba F.J.
  15. Walker R.L.
  16. Tilleman T.M.
  17. Published by
    CDS
Abstract

New, updated, and/or revised CCD parallaxes determined with the Strand Astrometric Reflector at the Naval Observatory Flagstaff Station are presented. Included are results for 309 late-type dwarf and subdwarf stars observed over the 30+ years that the program operated. For 124 of the stars, parallax determinations from other investigators have already appeared in the literature and we compare the different results. Also included here are new or updated VI photometry on the Johnson-Kron-Cousins system for all but a few of the faintest targets. Together with 2MASS JHK_s_ near-infrared photometry, a sample of absolute magnitude versus color and color versus color diagrams are constructed. Because large proper motion was a prime criterion for targeting the stars, the majority turn out to be either M-type subdwarfs or late M-type dwarfs. The sample also includes 50 dwarf or subdwarf L-type stars, and four T dwarfs. Possible halo subdwarfs are identified in the sample based on tangential velocity, subluminosity, and spectral type. Residuals from the solutions for parallax and proper motion for several stars show evidence of astrometric perturbations.

Keywords
  1. Dwarf stars
  2. Subdwarf stars
  3. Late-type stars
  4. Astrometry
  5. Optical astronomy
  6. Trigonometric parallax
  7. Proper motions
  8. Infrared photometry
  9. Photometry
  10. Stellar spectral types
Bibliographic source Bibcode
2017AJ....154..147D
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/154/147
IVOA Identifier IVOID
ivo://CDS.VizieR/J/AJ/154/147
Document Object Identifer DOI
doi:10.26093/cds/vizier.51540147

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/154/147
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/154/147
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/154/147
IVOA Table Access TAP
http://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).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/154/147/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/154/147/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/154/147/table1?

History

2018-07-09T14:05:06Z
Resource record created
2018-07-09T14:05:06Z
Created
2018-08-22T07:40:32Z
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