A Spectrophotometric Study and Mass Determination for the Cataclysmic Variable Lanning 10
Abstract
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.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- August 1986
- DOI:
- 10.1086/164461
- Bibcode:
- 1986ApJ...307..760S
- Keywords:
-
- Cataclysmic Variables;
- Dwarf Novae;
- Eclipsing Binary Stars;
- Stellar Spectrophotometry;
- Data Reduction;
- Helium;
- Light Curve;
- Line Spectra;
- Radial Velocity;
- Stellar Mass;
- Astrophysics;
- STARS: DWARF NOVAE;
- STARS: ECLIPSING BINARIES;
- STARS: INDIVIDUAL NAME: LANNING 10