A spectrophotometric study and mass determination for the cataclysmic variable Lanning 10

Details A spectrophotometric study and mass determination for the cataclysmic variable Lanning 10 A spectrophotometric study and mass determination for the cataclysmic variable Lanning 10

Aug 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...307..760s&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 307, Aug. 15, 1986, p. 760-767.

Astronomy and Astrophysics

Astrophysics

13

Cataclysmic Variables, Dwarf Novae, Eclipsing Binary Stars, Stellar Spectrophotometry, Data Reduction, Helium, Light Curve, Line Spectra, Radial Velocity, Stellar Mass

Scientific paper

Time-resolved spectrophotometry of the novalike cataclysmic variable Lanning 10 is analyzed. The radial velocity curves of the He II 4686-A emission line and the G-band absorption, coupled with an estimate of the inclination from the continuum eclipse, make it possible to derive component masses of M(WD) = 0.86 + or - 0.08 solar mass and M(RD) = 0.77 + or - 0.04 solar mass. The resulting radius of the secondary star places Lanning 10 B on the lower main sequence mass-radius relation. Lanning 10 B does not appear to suffer from the spectral type-mass discrepancy seen in U Gem B and AC Cnc B.

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