Contents of: VI/111/./abstract/DCLEMENS_PROTOBOK.abs

The following document lists the file abstract/DCLEMENS_PROTOBOK.abs from catalogue VI/111.
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      Bok globules are the smallest and simplest molecular clouds
 capable of forming new stars. Past work using the IRAS data base has
 helped to identify the nearby globules which show infrared signatures
 of current embedded star formation.
       However, the infrared emission from these YSOs is quite faint
 and in the longer far-infrared bands difficult to separate from the
 thermal emission due to the cool cloud dust. This confusion has
 prevented accurate determination of the broad band spectral energy
 distributions (SEDs) for these low-mass stars.
      The SEDs are vital for classifying the young stellar objects into
 their proper age, luminosity, and circumstellar dust categories. For
 example, the difference between the "protostellar" or pure infall
 Class 0 YSOs and the later, Class I YSOs may be due to inclination
 effects modifying the underlying SEDs. More accurate, detailed, and
 less confused SEDs for the Bok globule low-mass star sample are vital.
      Here we seek to obtain ISO multi-wavelength photometry and
 limited imaging in order to ascertain the SEDs for the YSOs in two
 sub-samples of Bok globules: those YSOs which have associated CO high
 velocity outflows (and are most like Class 0 or I); and those YSOs
 which do not have outflows, and tend to be optically visible (and
 are likely more like Class II YSOs).
      When combined with our ground-based molecular line spectroscopic
 maps, 2 micron array, and optical CCD imaging and photometry of these
 regions, accurate SEDs from 0.35 to 200 microns will be created and
 used to classify the YSOs and cross-compare the SEDs of the outflow and
 non-outflow samples.
      ISO observations will provide 13 important near-, mid-, and
 far-infrared flux values for each YSO, and will additionally image with
 great detail the photometric aperture regions to accurately assess the
 number of embedded sources and their local nebular environments.