We have obtained infrared colors and limiting magnitudes from 1.25 - 4
.8 mum for a sample of 26 of the cm continuum radio sources located in
the core of the rho Oph molecular cloud. Their colors demonstrate tha
t the majority of the sources appear to be heavily reddened objects su
rrounded by circumstellar accretion disks. In these cases the radio em
ission most likely diagnoses accretion driven energetic outflow phenom
ena: either ionized winds or possibly synchrotron emission from shocke
d gas associated with stellar jets.