Protostellar Collapse Induced by Compression

Details Protostellar Collapse Induced by Compression Protostellar Collapse Induced by Compression

Aug 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004ap%26ss.292..355p&link_type=abstract

Astrophysics and Space Science, v. 292, Issue 1, p. 355-360 (2004).

Astronomy and Astrophysics

Astrophysics

Ism: Structure, Ism: Gravitational Collapse

Scientific paper

We present numerical simulations of the evolution of low-mass, isothermal, molecular cores which are subjected to an increase in external pressure. If the external pressure increases very slowly, the core approaches instability quite quasi-statically. However, for faster compressions, a compression wave is driven into the core (Hennebelle, P., Whitworth, A., Gladwin, P. and André, P.: 2003a MNRAS 340, 870). Quantitative comparisons with observational velocity and density profiles are presented. The consequences of this compression for the fragmentation of the cloud is investigated and discussed.

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