Estimated astrophysical parameters from uvby Virtual Observatory Resource

Authors
  1. Philip A.G.D.
  2. Egret D.
  3. Published by
    CDS
Abstract

Observed values of the Stroemgren uvby colors were collected from the literature. A computer program calculated the reddening for each star. This value was used to compute the unreddened value of (b-v), c1, and m1. These were then used to compute [c(1)], [m(1)], and [u-b] for the star. Except for the H beta index, the observed quantities are not included. Introduction: The stars were divided into groups by spectral types by means of the bracket quantities. Stars which deviated too greatly from the standard relations could not be dereddened. These include peculiar stars and high luminosity stars and are listed in reject.dat. Various discussions by Crawford were followed to deredden the other stars. The zero point of the [Fe/H] relation was changed from 0.4 to 0.2 on the basis of the study by Gustafsson and Nissen (1972A&A....19..261G) and some corrections were made to the effective temperature scale in order to fit the new model by Kurucz (1979ApJS...40....1K). Otherwise, the derivations followed the methods of Philip, Miller, and Relyea (1976, Dudley Obs. Rep. No. 12, 1).

Keywords
  1. Optical astronomy
  2. Medium band photometry
  3. Effective temperature
Bibliographic source Bibcode
1980A&AS...40..199P
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/V/14
IVOA Identifier IVOID
ivo://CDS.VizieR/V/14

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=V/14
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=V/14
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=V/14
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/V/14/catalog?
https://vizier.iucaa.in/viz-bin/conesearch/V/14/catalog?
http://vizieridia.saao.ac.za/viz-bin/conesearch/V/14/catalog?

History

2006-11-06T15:48:09Z
Resource record created
2006-11-06T15:48:09Z
Created
2018-01-30T07:18:24Z
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