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Date and Time of the Query: 2019-06-16 T08:01:18 PDT
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For refcode 1997PASJ...49...17S:
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Copyright by Astronomical Society of Japan. 1997PASJ...49...17S Nuclear-to-Outer Rotation Curves of Galaxies in the CO and Hi Lines Yoshiaki SOFUE Institute of Astronomy, Faculty of Science, The University of Tokyo, 2- 21-1 Osawa, Mitaka, Tokyo 181 E-mail: sofue@mtk.ioa.s.u-tokyo.ac.jp (Received 1996 September 13; accepted 1996 November 14) Abstract We have derived rotation curves of nearby galaxies, which are almost completely sampled from the inner to outer regions. We used high- resolution position-velocity diagrams in the CO line along the major axes for the inner regions, and HI-line data for the outer regions. We combined the CO and HI data to obtain total rotation curves from the nuclear to outer regions. The rotation curves show a steep nuclear rise within a radius smaller than the resolutions of the CO-line observations, indicating a compact massive concentration near the nucleus. We show that the nuclear steep rise is general and universal, and that a rigid body- like gentle rise is exceptional. Key words: Galaxies: general Galaxies: kinematics - Galaxies: rotation - Galaxies: structure - ISM: CO emission - ISM: Hi gas
Retrieve 36 NED objects in this reference.
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