Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apjs...66..209b&link_type=abstract
Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 66, Feb. 1988, p. 209-226.
Astronomy and Astrophysics
Astrophysics
88
Astronomical Photography, Calibrating, Hubble Space Telescope, Iue, Stellar Spectra, Fortran, Sensitivity, Stellar Spectrophotometry
Scientific paper
The IUE data on standard stars that will be the basis of UV absolute photometric calibration for the Hubble Space Telescope must be corrected for the changes that are apparent in the low-dispersion spectra of the five standard stars. A set of 895 spectra is presently analyzed in order to determine the change in sensitivity of the SWP camera for the first 8 years of flight operations. Sensitivity loss is noted to be most acute at the shortest (1400-1500 A) wavelengths, as well as beyond 1800 A, where total degradation often exceeds 10 percent.
Bohlin Ralph Charles
Grillmair Carl J.
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