Time-monitoring Observations of the Ro-Vibrational Overtone CO bands in
  Young Stars
  We present near-IR spectra of a sample of T Tauri, Herbig Ae/Be, and FU Ori
objects. Using the FSPEC instrument on the Bok 90-inch telescope, we obtained
K-band spectra with a resolution of ~3500. Here we present spectra of the
v=2->0 and v=3->1 bandheads of ro-vibrational transitions of carbon monoxide.
We observed these spectra over multiple epochs spaced by a few days and
approximately one month. Several of our targets show CO emission or absorption
features. However we see little evidence of variability in these features
across multiple epochs. We compare our results with previous observations, and
discuss the physical implications of non-variable CO emission across the
sampled timescales.
