Kinematics of carbon monoxide observed within one degree of the galactic center

Abstract

Observations of the inner 2° of galactic longitude have been made in the 2.6 mm transition of carbon monoxide with 1'-2' beam spacings. The resulting maps show several large scale (> 100 pc) patterns which correlate well with features present in H I, including the nuclear disk and the 3 kpc arm. Several features are identified with absorption by very cold foreground clouds; the 3 kpc arm feature occurs in both emission and absorption.

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