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The Structure and Kinematics of the Ionized Gas In Centaurus A

Published online by Cambridge University Press:  04 August 2017

J. Bland
Affiliation:
Royal Greenwich Observatory, Hailsham, Sussex, England Institute for Astronomy, Honolulu, Hawaii
K. Taylor
Affiliation:
Royal Greenwich Observatory, Hailsham, Sussex, England
P. D. Atherton
Affiliation:
Queensgate Instruments, London, England

Abstract

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The TAURUS Imaging Fabry-Perot System (Taylor & Atherton 1980) has been used with the IPCS at the AAT to observe the ionized gas within NGC 5128 (Cen A) at [NII]λ6548 and Hα. Seven independent (x, y,λ) data cubes were obtained along the dust lane at high spectral resolution (30 km/s FWHM) and at a spatial resolution limited by the seeing (~1″). From these data, maps of the kinematics and intensities of the ionized gas were derived over a 420″ by 300″ region. The maps are the most complete to date for this object comprising 17500 and 5300 fitted spectra in Ha and [NII]λ6548 respectively. The dust lane system is found to be well understood in terms of a differentially rotating disc of gas and dust which is warped both along and perpendicular to the line-of-sight.

Type
Posters
Copyright
Copyright © Reidel 1987 

References

REFERENCES

Bland, J., and Taylor, K., 1986, submitted to M.N.R.A.S. Google Scholar
Bland, J., Taylor, K., and Atherton, P.D., 1986, M.N.R.A.S., in press Google Scholar
Steiman-Cameron, T.Y., and Durisen, R.H., 1984, Ap.J. 276, 101 Google Scholar
Taylor, K., and Atherton, P.D., 1980, M.N.R.A.S. 191, 675 Google Scholar
van Albada, T.S., Kotanyi, C.G., and Schwarzschild, M., 1982, M.N.R.A.S. 198, 303 Google Scholar