RGB photometric calibration of 213 million Gaia stars Virtual Observatory Resource

Authors
  1. Carrasco J.M.
  2. Cardiel N.
  3. Masana E.
  4. Zamorano J.
  5. Pascual S.,Sqnchez de Miguel A.
  6. Gonzalez R.
  7. Izquierdo J.
  8. Published by
    CDS
Abstract

Recent works have made strong efforts to produce standardised photometry in RGB bands. For this purpose, we carefully defined the transmissivity curves of RGB bands and defined a set of standard sources using the photometric information present in Gaia EDR3. This work aims not only to significantly increase the number and accuracy of RGB standards but also to provide, for the first time, reliable uncertainty estimates using the BP and RP spectrophotometry published in Gaia DR3 instead of their integrated photometry to predict RGB photometry. Furthermore, this method allows including calibrated sources regardless of how they are affected by extinction, which was a major shortcoming of previous work. The RGB photometry is synthesised from the Gaia BP and RP low-resolution spectra by directly using their set of coefficients multiplied with some basis functions provided in the Gaia catalogue for all sources published in Gaia DR3. The output synthetic magnitudes are compared with the previous catalogue of RGB standards available.

Keywords
  1. ccd-photometry
  2. visible-astronomy
Bibliographic source HTTP
https://doi.org/10.3390/rs15071767
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/II/374
IVOA Identifier IVOID
ivo://CDS.VizieR/II/374

Access

Web browser access HTML
https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=II/374
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=II/374
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=II/374
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/II/374/table2?
https://vizier.iucaa.in/viz-bin/conesearch/II/374/table2?
http://vizieridia.saao.ac.za/viz-bin/conesearch/II/374/table2?

History

2023-03-31T12:50:01Z
Resource record created
2023-03-31T12:50:01Z
Created
2024-06-19T14:19:04Z
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