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2012MNRAS.422.2600B - Mon. Not. R. Astron. Soc., 422, 2600-2608 (2012/May-3)
Mass ratio from Doppler beaming and Romer delay versus ellipsoidal modulation in the Kepler data of KOI-74.
BLOEMEN S., MARSH T.R., DEGROOTE P., OSTENSEN R.H., PAPICS P.I., AERTS C., KOESTER D., GANSICKE B.T., BREEDT E., LOMBAERT R., PYRZAS S., COPPERWHEAT C.M., EXTER K., RASKIN G., VAN WINCKEL H., PRINS S., PESSEMIER W., FREMAT Y., HENSBERGE H., JORISSEN A. and VAN ECK S.
Abstract (from CDS):
The radial velocities that can be inferred from the detected Doppler beaming in the light curve are found to be in agreement with our spectroscopic radial velocity determination. We also report the first measurement of R\omer delay in a light curve of a compact binary. This delay amounts to -56±17 s and is consistent with the mass ratio derived from the radial velocity amplitude. The firm establishment of this mass ratio at q= 0.104±0.004 leaves little doubt that the companion of KOI-74 is a low-mass white dwarf.
Abstract Copyright: 2012 The Authors Monthly Notices of the Royal Astronomical Society2012 RAS
Journal keyword(s): binaries: close - binaries: eclipsing - stars: individual: KOI-74
VizieR on-line data: <Available at CDS (J/MNRAS/422/2600): hbalmer.dat hmgii.dat ibalmer.dat imgii.dat detrend.dat folded.dat>
CDS comments: In the text WASP J0247-2515 is a misprint for 1SWASP J0247-2515 (= 1SWASP J024743.37-251549.2)
Simbad objects: 4
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