Far-Infrared and Submillimeter Analysis of a Dense Core: Temperature and Density Structure of L1489

Abstract

We present far infrared and submillimeter wavelength images of the dark cloud core Lynds 1489, taken with the Kuiper Airborne Observatory (KAO) and the Infrared Telescope Facility (IRTF). Using these images we have constructed maps of the temperature and dust density structure in the vicinity of the forming protostar. In brief, the observed structure is consistent with that of a hot (3000 – 6000 K) point source located on the edge of a cold (10 – 15 K) dense (105 cm−3) core. Our results indicate that the protostar, in concert with the interstellar radiation field, plays a large role in radiatively heating its surroundings including the associated dense core.KeywordsColumn DensityDense CoreAmmonia EmissionIRAS SourceHigh Column DensityThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.