  Determining the binary fraction for a population of asteroids, particularly
as a function of separation between the two components, helps describe the
dynamical environment at the time the binaries formed, which in turn offers
constraints on the dynamical evolution of the solar system. We searched the
NEOWISE archival dataset for close and contact binary Trojans and Hildas via
their diagnostically large lightcurve amplitudes. We present 48 out of 554
Hilda and 34 out of 953 Trojan binary candidates in need of follow-up to
confirm their large lightcurve amplitudes and subsequently constrain the binary
orbit and component sizes. From these candidates, we calculate a preliminary
estimate of the binary fraction without confirmation or debiasing of 14-23% for
Trojans larger than ~12 km and 30-51% for Hildas larger than ~4 km. Once the
binary candidates have been confirmed, it should be possible to infer the
underlying, debiased binary fraction through estimation of survey biases.
