Spectrophotometry of the eclipsing dwarf nova OY Carinae

Details Spectrophotometry of the eclipsing dwarf nova OY Carinae Spectrophotometry of the eclipsing dwarf nova OY Carinae

Jan 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981mnras.194p..17b&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 194, Jan. 1981, p. 17 P-23 P. Research supported by the Science Researc

Other

32

Dwarf Stars, Eclipsing Binary Stars, Line Spectra, Novae, Stellar Spectrophotometry, Balmer Series, Helium, Light Curve, Stellar Mass

Scientific paper

The dwarf nova OY Car has recently been found to be an eclipsing binary with a period of 91 min. Spectra were obtained around two cycles of the binary period with 2-A resolution. The spectra show broad doubled Balmer and He I lines with a deep central absorption and are very similar to those of the other short period eclipsing dwarf nova Z Cha. Radial velocity amplitude was approximately 125 km/s. A preliminary analysis of the binary structure results in component masses of approximately 0.4 and 0.14 solar masses. It should be possible to refine this analysis when more detailed photometric data are available

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