Young Stellar Objects in Orion B

I will discuss our search for young stellar objects in the northern part of the Orion molecular cloud B, where we identify almost 200 young stellar objects that coincide or are located close to sites of active star formation. With the total gas mass of the cloud substructures, we calculate local star formation efficiencies, rates, and the star formation density for the star formation sites NGC 2068, NGC 2071, HH24-26. The derived SFEs are similar to those measured for the Orion molecular cloud A, and moreover, the star formation surface density is in excellent agreement with previous findings in other Galactic star-forming regions.