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GBT and VLA investigation of the ionized gas towards the Galactic center

Published online by Cambridge University Press:  22 May 2014

M. J. Royster  and
F. Yusef-Zadeh
M. J. Royster
Affiliation:
Department of Physics & Astronomy and CIERA, Northwestern University, Evanston, IL, 60208, USA email: mjroyster@u.northwestern.edu
F. Yusef-Zadeh
Affiliation:
Department of Physics & Astronomy and CIERA, Northwestern University, Evanston, IL, 60208, USA email: mjroyster@u.northwestern.edu
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Abstract

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We report results of a study of the ionized gas towards the Galactic center with radio recombination lines at cm wavelengths. Both the Green Bank Telescope and the Very Large Array were utilized to probe the kinematics of the ionized gas on a global scale for both diffuse and discrete sources within the inner 2.0° × 0.5° (l × b). A diffuse ∼0 km s−1 gas, a thermal flux continuum fraction exceeding 40%, and an asymmetry where ∼70% of the ionized gas is found at positive Galactic longitudes are the preliminary results briefly discussed here.

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