Spectral energy distributions for seven standard stars used in compiling a spectrophotometric catalog

Details Spectral energy distributions for seven standard stars used in compiling a spectrophotometric catalog Spectral energy distributions for seven standard stars used in compiling a spectrophotometric catalog

Oct 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982sva....26..548g&link_type=abstract

(Astronomicheskii Zhurnal, vol. 59, Sept.-Oct. 1982, p. 908-917) Soviet Astronomy (ISSN 0038-5301), vol. 26, Sept.-Oct. 1982, p.

Astronomy and Astrophysics

Astronomy

2

Astronomical Catalogs, Reference Stars, Spectral Energy Distribution, Stellar Spectrophotometry, Calibrating, Ultraviolet Spectra, Visible Spectrum

Scientific paper

New absolute spectral energy distributions E81 for seven standard stars (Beta Ari, Gamma Ori, Beta Tau, Alpha Leo, Eta Uma, Alpha Aql, and Alpha Peg) in the 3200-7600 A range are derived from spectrophotometric calibrations against the prime standard Alpha Lyr. These calibrations were performed at the Crimean station of the Shternberg Astronomical Institute between May 1973 and October 1980. For Beta Tau, Eta UMa, Alpha Peg (expect in the UV), and Alpha Leo (expect for 5000-6500 A), the E81 illuminances are consistent (within the errors) with the earlier distributions E76 derived by combining the Shternberg data with those of the Alma-Ata Astrophysical Institute. For Beta Ari, Gamma Ori, and Alpha Leo (5000-6500 A), E81 exceeds E76 by 5-7 percent. It is noted that in the case of Beta Ari the disparity can be attributed to an underestimate of its energy flux measured with the pre-1973 Cactus amplifier at Alma-Ata. As a result, the E76 curve for Beta Ari is too low.

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