Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979mnras.189..701l&link_type=abstract
Monthly Notices of the Royal Astronomical Society, vol. 189, Dec. 1979, p. 701-708.
Astronomy and Astrophysics
Astronomy
7
Planetary Nebulae, Satellite Observation, Sky Surveys (Astronomy), Spaceborne Telescopes, Stellar Spectra, Ultraviolet Spectra, Helium Ions, Hydrogen Atoms, Stellar Temperature, Td-1 Satellite
Scientific paper
Ultraviolet spectra of the central stars of seven planetary nebulae obtained by the S2/68 sky-survey telescope on the TD-1 European satellite are presented. Possible emission features in the central star spectra are discussed, and black body temperatures are compared to temperatures found by H I and He II Zanstra temperatures. In addition, broadband fluxes in each of the four S2/68 channels are presented for 14 additional planetary nebulae. The fluxes derived from the TD-1 observations will be used in predicting exposure times for observations of central stars with satellites such as the International Ultraviolet Explorer.
Carnochan David J.
Lutz Jack H.
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