Nuclear Rotation Curves of Galaxies in the Co-Line Emission
Open Access
- 1 December 1997
- journal article
- Published by American Astronomical Society in The Astronomical Journal
- Vol. 114, 2428
- https://doi.org/10.1086/118657
Abstract
We have obtained high-resolution position-velocity (PV) diagrams along the major axes of the central regions of nearby galaxies in the CO-line emission using the Nobeyama 45-m telescope and the Millimeter Array. Nuclear rotation curves for 14 galaxies have been derived based on the PV diagrams using the envelope-tracing method. The nuclear rotation curves for most of the galaxies show a steep rise within a few hundred pc, which indicates a high-density concentration of mass. Keywords: Galaxies: general - Galaxies: structure - ISM: molecular lineComment: To appear in AJ, Plain TeX, Figures on requesKeywords
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