Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2012
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21915329v&link_type=abstract
American Astronomical Society, AAS Meeting #219, #153.29
Astronomy and Astrophysics
Astronomy
Scientific paper
We have spectroscopically and photometrically observed the low mass eclipsing binary LP133-373 over several years. The new radial velocities have helped refine the physical characteristics of this important system, particularly the mass ratio, which is close to unity. Velocity curves based on measurements of the H alpha emission lines appear to have a larger amplitude than curves made with absorption line measurements, possibly due to the location of active regions. Additional eclipse timings indicate that the orbital period may be changing and the systemic velocity appears to be changing as well.
Kawka Adela
Terrell Dirk
Vaccaro Todd Russell
Vennes Stephane
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