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Optical Kinematics of Strong Radio Galaxies

Published online by Cambridge University Press:  04 August 2017

S. M. Simkin
S. M. Simkin*
Affiliation:
Department of Physics and Astronomy, Michigan State University

Extract

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Recent spectroscopic measurements of 5 strong radio galaxies showed that approximately 50% of these objects had internal gas velocities which were notably non-circular. To investigate this, more detailed observations were done for the galaxies in question. Examination of these results suggests that the non-circular velocities tend to fall into a pattern. All of the objects have one kinematical component which fits the classical picture of “circular rotation”. This occurs in BOTH the stellar and ionized gas and displays MUCH HIGHER peak velocities than are found in E galaxies. In addition, all of the objects studied possess a second ionized gas system at a different velocity from that of the rotating gas. Finally, at least one of the objects has an envelope of stars which is either not rotating or has a very different kinematic major axis from that of the stellar population in its inner regions.

Type
V. Spheroidal Systems
Information
Symposium - International Astronomical Union , Volume 100: Internal Kinematics and Dynamics of Galaxies , 1983 , pp. 313 - 314
Copyright
Copyright © Reidel 1983 

References

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