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Gas Outflow in the Seyfert Galaxy IC 5063

Published online by Cambridge University Press:  12 April 2016

R. Morganti ,
T. Oosterloo  and
Z. Tsvetanov
R. Morganti
Affiliation:
Istituto di Radioastronomia, Bologna, Italy ATNF - CSIRO, Epping, Australia
T. Oosterloo
Affiliation:
ATNF - CSIRO, Epping, Australia
Z. Tsvetanov
Affiliation:
Johns Hopkins University, BaltimoreMD 21218, USA

Extract

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IC 5063 (PKS 2048–572) is a nearby (z = 0.0110) early-type galaxy hosting a Seyfert 2 nucleus. In broad-band optical images, it shows a complex dust lane, while the ionized gas extends up to ~ 20 kpc and has an unusual X-shaped structure (Danziger et al. 1981, Colina et al. 1990). A faint, very broad emissionline component has been detected (Bergeron et al. 1983, Colina et al. 1991) together with an off-nuclear broad emission-line region (Wagner & Appenzeller 1989). Broad Hα emission was also detected in polarized light (Inglis et al. 1993). Thus, it is likely that this galaxy has a broad-line region which is obscured from our direct view (while the broad-line radiation is scattered into our line of sight by scatterers outside the obscuring regions). The radio luminosity of IC 5063 is nearly two orders of magnitude larger than typical values for nearby Seyferts (Ulvestad & Wilson 1984), making it one of the strongest radio sources found in Seyfert galaxies (1.3 Jy at 1.4 GHz, i.e., 2 × 1023W Hz−1 for H0 = 50 km s−1 Mpc−1). Its H I content is also very high: Danziger et al. (1981) found 1.0 × 1010M⊙, which gives MHI/LB = 0.4, quite anomalous for this type of object.

Type
VI. The Narrow-Line Regions and Beyond
Information
International Astronomical Union Colloquium , Volume 159: Emission Lines in Active Galaxies: New Methods and Techniques , 1997 , pp. 310 - 311
Copyright
Copyright © Astronomical Society of the Pacific 1997

References

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