Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...280..213t&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 280, May 1, 1984, p. 213-219.
Astronomy and Astrophysics
Astrophysics
7
Early Stars, Far Ultraviolet Radiation, Orion Constellation, Stellar Spectrophotometry, Ultraviolet Photometry, Background Radiation, Calibrating, Iue, Radiation Distribution, Rocket-Borne Instruments, Stellar Radiation
Scientific paper
Absolute photometry of the southern Orion region was carried out for five passbands in the vacuum ultraviolet (1300-2000 A, Delta Lambda = 84 A) with a rocket-borne spectrometer. More than 60 early-type stars and the diffuse background radiation were observed within the raster-scanned field of 8 x 8 deg centered at alpha = 5 h 30 m and delta = -4 deg. Stellar data suggest a revision of the current absolute scale by 10-30 percent, which relatively suppresses the flux toward shorter wavelengths. The present data of the background radiation have the highest spectral resolution among those published and indicate a steep systematic increase of the flux toward shorter wavelengths. Direct consequences of the new calibration are briefly discussed.
Kodaira Keichi
Nishi Keizo
Onaka Takashi
Sawamura Masaya
Tanaka Toshiaki
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