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Larry Kirby 2009 ApJ 694 1056 doi:10.1088/0004-637X/694/2/1056

DR21 MAIN: A COLLAPSING CLOUD*

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Larry Kirby

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Abstract References Cited By

The molecular cloud, DR21 Main, is an example of a large-scale gravitational collapse about an axis near the plane of the sky where the collapse is free of major disturbances due to rotation or other effects. Using flux maps, polarimetric maps, and measurements of the field inclination by comparing the line widths of ion and neutral species, we estimate the temperature, mass, magnetic field, and the turbulent kinetic, mean magnetic, and gravitational potential energies, and present a three-dimensional model of the cloud and magnetic field.


Footnote
*  Dissertation submitted to the Department of Astronomy and Astrophysics, University of Chicago, in partial fulfillment of the requirements for the Ph.D. degree.
Keywords

ISM: magnetic fields; stars: formation; submillimeter; techniques: polarimetric


Dates

Issue 2 (2009 April 1)

Received 2008 June 4, accepted for publication 2008 November 13

Published 2009 March 23



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