A Mid-Infrared Study of the Class 0 Cluster in LDN 1448
  We present ground-based mid-infrared observations of Class 0 protostars in LDN 1448. Of the five known protostars in this cloud, we detected two, L1448N:A and L1448C, at 12.5, 17.9, 20.8, and 24.5 microns, and a third, L1448 IRS 2, at 24.5 microns. We present high-resolution images of the detected sources, and photometry or upper limits for all five Class 0 sources in this cloud. With these data, we are able to augment existing spectral energy distributions (SEDs) for all five objects and place them on an evolutionary status diagram. 
J. C. O'Linger (1), D. M. Cole (2), M. E. Ressler (2), G. A.   Wolf-Chase (3 and 4) ((1) Spitzer Science Center, California ...