are prone to oscuration by dust. We see how most of the X-ray sources are associated with the molecular cloud and the embedded population, confirming that most of the point source X-ray emission in DR15 comes from young stars.

![image](f3.pdf){width="7.0in"}

FCRAO Observations  {#obs:others}
-------------------

We made use of the Five College Radio Observatory (FCRAO) $^{13}$CO(1-0) molecular radio emission map of the South Cygnus-X region from the study of @Schneider:2011aa. The map is a RA-Dec-radial velocity cube, from which we extracted molecular gas properties using standard tools from the `MIRIAD` [@Sault:1995aa] package.

Analysis 
=========

We limited our region of study to the area covered with OMEGA 2000, defined as $\mathrm{[RA,\ Dec]}=[307.969040,40.150383]\rightarrow[308.305620,40.405865]$. The analysis described below correspond to sources falling within that area only.

Identification of YSOs  {#analysis:ysoid}
-----------------------

We identified Young Stellar Objects (YSOs) in the DR15 region, by applying color and brightness criteria to our multiwavelength catalog. For sources that were detected in the Spitzer IRAC and MIPS 24$\mu$m bands, we classified Class I/0 (embedded protostars) and Class II (Classic T Tauri) sources using the criteria by @Ybarra:2013aa, we also required that these sources had photometric uncertainty values less than 0.25 mag in each band.

Our color criteria @Ybarra:2013aa are 