An improved spectroscopic orbit for the white dwarf eclipsing binary BD +16 deg 516

Details An improved spectroscopic orbit for the white dwarf eclipsing binary BD +16 deg 516 An improved spectroscopic orbit for the white dwarf eclipsing binary BD +16 deg 516

Apr 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976apj...205..182y&link_type=abstract

Astrophysical Journal, vol. 205, Apr. 1, 1976, pt. 1, p. 182-185. Research supported by the Research Corp.

Astronomy and Astrophysics

Astrophysics

15

Eclipsing Binary Stars, Orbit Calculation, Stellar Spectra, White Dwarf Stars, Emission Spectra, Mass Transfer, Photographic Plates, Radial Velocity

Scientific paper

Original spectrograms plus newly acquired ones have been remeasured and analyzed along with numerous standard stars to provide a more definitive orbit solution and center-of-mass radial velocity for this important binary. Evidence from the Ca II emission lines suggests that a chromospheric 'event' may have been observed which is related to mass exchange.

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