The Velocities of 6cm Recombination Line Emission originating near the Galactic Nucleus
- 1 September 1976
- journal article
- other
- Published by Cambridge University Press (CUP) in Publications of the Astronomical Society of Australia
- Vol. 3 (2) , 150-152
- https://doi.org/10.1017/s1323358000015174
Abstract
Although it is well known that HII regions are present in the innermost regions of the Galaxy their kinematics are still not fully understood. In one study Pauls et al. (1976) surveyed with a beamwidth of 3′ arc the 10 GHz recombination line emission in directions within 15′ arc of the nuclear radio source Sgr A. They found that the emission velocities varied from position to position within the range -50 to + 50 km s-1but appeared to lack any overall pattern. In contrast, we have recently observed the recombination line emission from the galactic centre region with a beamwidth of 4′.5 arc, and find strong evidence of ordered motions near the galactic nucleus.Keywords
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