Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984nascp2349..277f&link_type=abstract
In NASA. Goddard Space Flight Center Future of Ultraviolet Astronomy Based on Six Years of IUE Res. p 277-280 (SEE N85-20961 1
Astronomy and Astrophysics
Astronomy
11
Calibrating, Iue, Stellar Spectra, Stellar Temperature, White Dwarf Stars, Accuracy, Estimates, Spectrum Analysis
Scientific paper
Using low dispersion short and long wavelength camera observations, the spectra of over twenty stars identified as DA white dwarfs, with temperatures in the range 20,000 to 70,000 K were analyzed. In addition to the IUE data were collected, all other available data on these stars from which temperature estimates may be made. The observed IUE fluxes were compared with the FUV fluxes predicted by using the observed V magnitudes and temperatures obtained from non-IUE data. These comparisons indicate a need to revise the overall IUE calibration by +10% in Flambda. The appropriate correction as a function of wavelength was computed, and this correction was applied to the measured IUE fluxes. Temperatures with significantly more accuracy than is achievable with optical photometry were obtained.
Basri Gibor
Bowyer Stuart
Finley David S.
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