Synthetic UBVR-photometries from flux-calibrated spectra

Details Synthetic UBVR-photometries from flux-calibrated spectra Synthetic UBVR-photometries from flux-calibrated spectra

Oct 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991an....312..357g&link_type=abstract

Astronomische Nachrichten (ISSN 0004-6337), vol. 312, no. 6, 1991, p. 357-375. In German.

Astronomy and Astrophysics

Astronomy

Astronomical Photometry, Stellar Color, Stellar Luminosity, Stellar Spectra, Ubv Spectra, Early Stars, Late Stars

Scientific paper

The broadband-UBVR systems of Johnson and Cousins as they are used at Cerro Tololo, the South African Astronomical Observatory, and Mount Stromlo are described. The derivation of synthetic photometries of these systems and that of Bessell (1990) is discussed, and the transformation relations from the various systems to the original Johnson system are presented. The accuracy of the synthetic photometry is +/- 0.02 mag in V and (B-V), +/- 0.09 mag in (U-B), and +/- 0.05 mag in (V-B). Brightness and color differences in the systems due to sensitivity differences are analyzed and explained.

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