II/374ivo://CDS.VizieR/II/374CDSCarrasco J.M.Cardiel N.Masana E.Zamorano J.Pascual S.,Sqnchez de Miguel A.Gonzalez R.Izquierdo J.2026-08-03T06:36:51Z2023-03-31T12:50:01ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frccd-photometryvisible-astronomyRecent 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.https://doi.org/10.3390/rs15071767https://cdsarc.cds.unistra.fr/viz-bin/cat/II/374CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/355 : Gaia DR3 Part 1. Main source (Gaia Collaboration, 2022)J/MNRAS/504/3730 : Synthetic RGB photometry of bright starsJ/MNRAS/507/318 : RGB photometric calibration of 15 million Gaia starshttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=II/374https://vizier.iucaa.in/viz-bin/VizieR-2?-source=II/374http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=II/374https://vizier.cds.unistra.fr/viz-bin/votable?-source=II/374https://vizier.iucaa.in/viz-bin/votable?-source=II/374http://vizieridia.saao.ac.za/viz-bin/votable?-source=II/374GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table II/374/table2 (Catalogue with RGB magnitudes for Gaia DR3 objects)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?GETtext/xml+votable180.050000true44.996155378650.005615226340.0055555555555555560/0-8 10-11 1/36 38-39 2/148-149 151 3/601-603 4/2401-2403 5/9600-9601 9603 6/38408 38410-38411https://cdsarc.cds.unistra.fr/viz-bin/moc/II/374?format=asciiOpticaldefaultII/374/table2Catalogue with RGB magnitudes for Gaia DR3 objectsGaiaDR3Source identifier in Gaia DR3meta.id;meta.mainRA_ICRSRight Ascension (ICRS) at Ep=2016.0degpos.eq.ra;meta.mainindexedDE_ICRSDeclination (ICRS) at Ep=2016.0degpos.eq.dec;meta.mainindexedBrgb? Blue RGB estimate (1)magphot.mag;em.opt.BfloatnullableGrgb? Green RGB estimate (1)magphot.mag;em.optfloatnullableRrgb? Red RGB estimate (1)magphot.mag;em.opt.Rfloatnullablee_Brgb? Uncertainty in Brgb (1)magstat.errorfloatnullablee_Grgb? Uncertainty in Grgb (1)magstat.errorfloatnullablee_Rrgb? Uncertainty in Rrgb (1)magstat.errorfloatnullableobjtype[0/3] Object type (2)src.classintqlflag[0/1] Quality flag (3)meta.code.qualint