Physics
Scientific paper
Sep 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984phdt.........4d&link_type=abstract
Ph.D. Thesis California Univ., Los Angeles.
Physics
12
Cataclysmic Variables, Mass Transfer, Ultraviolet Spectra, White Dwarf Stars, Classifications, Electrophotometers, Emission Spectra, Hydrogen, Line Spectra, Photography
Scientific paper
A survey for galactic plane ultraviolet-excess (UV-excess) objects covering about 1000 square degrees of sky was undertaken. Photographic plates were obtained, with both UV and blue filters, to select the UV-excess candidates, which were then observed spectroscopically to determine their classification. Most of the objects selected wre nearby early-type stars with low interstellar reddening; however, a collection of hot white dwarfs, subdwarf O(sdO) stars, subdwarf B(sdB) stars, and cataclysmic variables was also found. Photoelectric photometry was obtained for these stars, and a statistical analysis was performed to determine the space densities and scale heights for the four classes of objects.
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