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Kinematic Properties of the Ejected Matter in NGC 1275

Published online by Cambridge University Press:  03 August 2017

J. M. Marr ,
D. C. Backer ,
M. C. H. Wright ,
A. C. S. Readhead  and
R. Moore
J. M. Marr
Affiliation:
Radio Astronomy Lab and Astronomy Department, University of California, Berkeley
D. C. Backer
Affiliation:
Radio Astronomy Lab and Astronomy Department, University of California, Berkeley
M. C. H. Wright
Affiliation:
Radio Astronomy Lab and Astronomy Department, University of California, Berkeley
A. C. S. Readhead
Affiliation:
Astronomy Department, California Institute of Technology
R. Moore
Affiliation:
Astronomy Department, California Institute of Technology

Abstract

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We have mapped the nearby (z=0.018), active galaxy NGC 1275 (3C84) at 6 different epochs from 1981 to 1986 at 1.3 cm (22.3 GHz) with a global VLBI array of seven telescopes. We find a long-lived knot of emission separating from the brightest radio component with a projected velocity = 0.4 6±0.12 h−1 c. This knot moves through diffuse emission that also moves away from the main component with a slower projected velocity of 0.33±0.12 h−1 c. We show that the knot and diffuse emission result from two separate events that occurred around 1959 and 1968.

Type
Extragalactic
Information
Symposium - International Astronomical Union , Volume 129: The Impact of VLBI on Astrophysics and Geophysics , 1988 , pp. 91 - 92
Copyright
Copyright © Reidel 1988 

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