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Fabry-Perot Observations of Cen A

Published online by Cambridge University Press:  04 August 2017

J.J.E. Hayes ,
R.A. Schommer  and
T.B. Williams
J.J.E. Hayes
Affiliation:
Department of Physics and Astronomy, Rutgers University, Piscataway, NJ 08854, USA
R.A. Schommer
Affiliation:
Department of Physics and Astronomy, Rutgers University, Piscataway, NJ 08854, USA
T.B. Williams
Affiliation:
Department of Physics and Astronomy, Rutgers University, Piscataway, NJ 08854, USA

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We present Fabry–Perot spectrophotometry of the well-known peculiar galaxy Cen A (NGC 5128). The observations were carried out using the Rutgers Fabry–Perot system and a CCD as a detector. We scanned the Hα and [NII] (λ6583) emission lines. From these data we were able to construct maps of the continuum, line emission, velocity and velocity dispersion. The velocity maps in both Hα and [NII] have smooth gradients and twists in the line of nodes. The deprojected emission maps strongly resemble emission maps of face-on spirals. We speculate that Cen A is a merger between an elliptical and a spiral.

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Posters
Information
Symposium - International Astronomical Union , Volume 127: Structure and Dynamics of Elliptical Galaxies , 1987 , pp. 419 - 420
Copyright
Copyright © Reidel 1987 

References

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