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The North Middle Lobe of Centaurus A

Published online by Cambridge University Press:  24 March 2015

Susan G. Neff ,
Jean A. Eilek  and
Frazer N. Owen
Susan G. Neff
Affiliation:
Observational Cosmology Laboratory, NASA's Goddard Space Flight Center, Greenbelt, MD 20771, USA email: [email protected]
Jean A. Eilek
Affiliation:
Dept. of Physics, New Mexico Tech, and National Radio Astronomy Observatory, Socorro, NM 87801, USA email: [email protected]
Frazer N. Owen
Affiliation:
National Radio Astronomy Observatory, Socorro, NM 87801, USA email: [email protected]
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Abstract

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We present new, deep VLA 327 MHz, GALEX Far-UV, and Hα images of the inner ~50 kpc of Centaurus A. We find the structure identified by Morganti et al. 1999 as a possible “large scale jet” is part of a knotty, linear feature within a broader region of diffuse radio emission. The linear feature is coincident with a narrow ribbon of Far-UV and Hα emission that extends 6-35 kpc from the galaxy core, as well with a similar ridge of soft X-ray emission. The Far-UV image also shows that a strong starburst is occurring in the central dusty disk, with a star-formation rate of ~ 2M⊙ yr−1. We suggest that the various peculiar phenomena seen to the NE of the galaxy can be explained by a wind from the starburst disk, enhanced by energy input from the AGN.

Keywords

galaxies: activegalaxies: individual (Cen A)galaxies: jetsgalaxies: starburst
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 10 , Issue S313: Extragalactic jets from every angle , September 2014 , pp. 246 - 247
Copyright
Copyright © International Astronomical Union 2015 

References

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