  Transition disks (TDs) are intermediate stage circumstellar disks
characterized by an inner gap within the disk structure. To test whether these
gaps may have been formed by closely orbiting, previously undetected stellar
companions, we collected high-resolution optical spectra of 31 TD objects to
search for spectroscopic binaries (SBs). Twenty-four of these objects are in
Ophiuchus and seven are within the Coronet, Corona Australis, and Chameleon I
star-forming regions. We measured radial velocities for multiple epochs,
obtaining a median precision of 400 ms$^{-1}$. We identified double-lined SB
SSTc2d J163154.7-250324 in Ophiuchus, which we determined to be composed of a
K7($\pm$0.5) and a K9($\pm$0.5) star, with orbital limits of $a<$0.6 AU and
$P<$150 days. This results in an SB fraction of 0.04$^{+0.12}_{-0.03}$ in
Ophiuchus, which is consistent with other spectroscopic surveys of non-TD
objects in the region. This similarity suggests that TDs are not preferentially
sculpted by the presence of close binaries and that planet formation around
close binaries may take place over similar timescales to that around single
stars.
