The Initial Conditions of Star Formation: A Study of Pre-Stellar Cores

Details The Initial Conditions of Star Formation: A Study of Pre-Stellar Cores The Initial Conditions of Star Formation: A Study of Pre-Stellar Cores

Nov 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996dln.........19w&link_type=abstract

Daresbury Laboratory: Newsletter on Analysis of Astronomical Spectra, p. 19

Mathematics

Logic

Ambipolar Diffusion, Star Formation, Stellar Cores, Protostars, Hydrostatics, Collapse

Scientific paper

We present a summary of observations which lead us to conclude that pre-stellar cores, which represent the stage of star formation before the main protostellar collapse phase, are morphologically consistent with the predictions of ambipolar diffusion models. We then describe recent JCMT observations which appear to show that the evolutionary timescales required for a core to evolve from densities of 104-105/cu cm relative to the time taken to evolve from a density of 105/cu cm to the point where a hydrostatic protostar forms, are also consistent with the detailed predictions of ambipolar diffusion models.

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