Ultraviolet television data from the orbiting astronomical observatory. II - Stellar ultraviolet colors and interstellar extinction

Details Ultraviolet television data from the orbiting astronomical observatory. II - Stellar ultraviolet colors and interstellar extinction Ultraviolet television data from the orbiting astronomical observatory. II - Stellar ultraviolet colors and interstellar extinction

Aug 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974apjs...28..211p&link_type=abstract

Astrophysical Journal Supplement Series (Supplement no. 260), vol. 28, Aug. 1974, p. 211-245.

Astronomy and Astrophysics

Astronomy

9

Astronomical Catalogs, Interstellar Extinction, Spaceborne Astronomy, Spacecraft Television, Stellar Atmospheres, Ultraviolet Radiation, Astronomical Photometry, Celescopes, Early Stars, Instrument Errors, Oao 2, Satellite Observation, Satellite-Borne Instruments, Stellar Rotation

Scientific paper

The results from the Celescope Catalog of Ultraviolet Stellar Observations (Davis, Deutschman, and Haramundanis 1973) are studied, emphasizing statistical groups and subgroups of stars. In spite of the rather large observational errors, the great number of Celescope observations make it possible to do that kind of study with reasonable accuracy. Some stars have ultraviolet colors that differ significantly from those of the group to which they have been assigned on the basis of ground-based observations. An attempt is made to describe the general properties of the ultraviolet colors of the stars as observed by the Celescope experiment on board NASA's Orbiting Astronomical Observatory (OAO-2). Besides the direct applicability of these results to the general study of stellar atmospheres and of interstellar extinction, they are also considered as a frame of reference for further studies of individual stars and groups of stars.

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