UBV photometry of hot DA white dwarfs

Details UBV photometry of hot DA white dwarfs UBV photometry of hot DA white dwarfs

Feb 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991aj....101..579k&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 101, Feb. 1991, p. 579-582.

Astronomy and Astrophysics

Astronomy

21

Cataclysmic Variables, Stellar Spectrophotometry, Ubv Spectra, White Dwarf Stars, Color-Color Diagram, High Dispersion Spectrographs, Stellar Atmospheres, Stellar Temperature, Subdwarf Stars

Scientific paper

Johnson UBV photometry has been obtained photoelectrically for a set of DA white dwarfs with effective temperatures greater than 20,000 K and for the AM Her type binary HO538 + 608. Most of the white dwarfs lie within existing Einstein IPC or EXOSAT LE soft X-ray fields, therefore they are of interest as potential serendipitous soft X-ray sources. In addition, high dispersion spectroscopy has been used to differentiate seven of these objects to be subdwarfs.

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