Pseudomagnitude distances applied to the Pleiades Virtual Observatory Resource

Authors
  1. Chelli A.
  2. Duvert G.
  3. Published by
    CDS
Abstract

The concept of pseudomagnitude was recently introduced to estimate apparent stellar diameters using a strictly observational methodology. Pseudomagnitudes are distance indicators, which have the remarkable property of being reddening free. In this study, we use Hipparcos parallax measurements to compute the mean absolute pseudomagnitudes of solar neighbourhood dwarf stars as a function of their spectral type. To illustrate the use of absolute pseudomagnitudes, we derive the distance moduli of 360 Pleiades stars and find that the centroid of their distribution is 5.71+/-0.018, corresponding to a distance of 139.0+/-1.2pc. We locate the subset of ~50 Pleiades stars observed by Hipparcos at a mean distance of 135.5+/-3.7pc, thus confirming the frequently reported anomaly in the Hipparcos measurements of these stars.

Keywords
  1. stellar-distance
  2. photometry
Bibliographic source Bibcode
2016A&A...593L..18C
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/593/L18
IVOA Identifier IVOID
ivo://CDS.VizieR/J/A+A/593/L18
Document Object Identifer DOI
doi:10.26093/cds/vizier.35939018

Access

Web browser access HTML
https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/593/L18
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/593/L18
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/593/L18
IVOA Table Access TAP
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/A+A/593/L18/table3?
https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/593/L18/table3?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/593/L18/table3?

History

2016-09-26T07:47:11Z
Resource record created
2016-09-26T07:47:11Z
Created
2017-12-15T10:55:10Z
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