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Ionization of the Galactic Center Arched Filaments

Published online by Cambridge University Press:  12 April 2016

R. Rubin
Affiliation:
UCLA
M. Morris
Affiliation:
UCLA
E.F. Erickson
Affiliation:
NASA Ames Research Center
S. Colgan
Affiliation:
NASA Ames Research Center
J. Simpson
Affiliation:
UC, Berkeley

Extract

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The remarkable filament system seen in radio observations in the vicinity of the galactic center includes two thin filaments which arch away from the galactic plane (E.G. Yusef-Zadem et al 1984). The brightest part of each of these thermal structures is located at GO.10+0.02 and GO.07+0.04. Morris and Yusef-Zadem (1989) reason that photoionization by OB stars is unlikely on geometrical and morphological grounds. They suggest a magnetohydrodynamic mechanism to account for the radio emission and ionization. Erickson et al. (1968) were able to explain most of their observations of the far infrared (FIR) fine structure line emission from these locations in terms of a photoionization model.

Type
I. Molecular Clouds, Star Formation And HII Regions
Copyright
Copyright © Springer-Verlag 1989