(abridged for arXiv) The BEER algorithm searches stellar light curves for the
BEaming, Ellipsoidal, and Reflection photometric modulations that are caused by
a short-period companion. Applying the search to the first five long-run center
CoRoT fields, we identified 481 non-eclipsing candidates with periodic flux
amplitudes of 0.5−87 mmag. Optimizing the Anglo-Australian-Telescope pointing
coordinates and the AAOmega fiber-allocations with dedicated softwares, we
acquired six spectra for 231 candidates and seven spectra for another 50
candidates in a seven-night campaign. Analysis of the red-arm AAOmega spectra,
which covered the range of 8342−8842A˚, yielded a radial-velocity
precision of ∼1 km/s. Spectra containing lines of more than one star were
analyzed with the two-dimensional correlation algorithm TODCOR. The measured
radial velocities confirmed the binarity of seventy of the BEER candidates−45
single-line binaries, 18 double-line binaries, and 7 diluted binaries. We
show that red giants introduce a major source of false candidates and
demonstrate a way to improve BEER's performance in extracting higher fidelity
samples from future searches of CoRoT light curves. The periods of the
confirmed binaries span a range of 0.3−10 days and show a rise in the number
of binaries per ΔlogP toward longer periods. The estimated mass ratios
of the double-line binaries and the mass ratios assigned to the single-line
binaries, assuming an isotropic inclination distribution, span a range of
0.03−1. On the low-mass end, we have detected two brown-dwarf candidates on a
∼1 day period orbit. This is the first time non-eclipsing beaming binaries
are detected in CoRoT data, and we estimate that ∼300 such binaries can be
detected in the CoRoT long-run light curves.Comment: 28 pages, 15 figures, and 11 tables. Accepted for publication in A&
