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3.13. Outflow in the Seyfert galaxy NGC 7319

Published online by Cambridge University Press:  25 May 2016

K. Aoki ,
G. Kosugi ,
M. Yoshida ,
H. Ohtani  and
A.S. Wilson
K. Aoki
Affiliation:
National Astronomical Observatory of Japan, 2-21-1, Osawa, Mitaka, Tokyo 181-8588 Japan
G. Kosugi
Affiliation:
National Astronomical Observatory of Japan, 2-21-1, Osawa, Mitaka, Tokyo 181-8588 Japan
M. Yoshida
Affiliation:
Okayama Astrophysical Observatory, Kamogata-cho, Asakuchi-gun, Okayama 719-02 Japan
H. Ohtani
Affiliation:
Department of Astronomy, Kyoto University, Sakyo-ku, Kyoto 606-01 Japan
A.S. Wilson
Affiliation:
Department of Astronomy, University of Maryland, College Park, MD 20742 U.S.A.

Extract

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Aoki et al. (1996) found outflowing gas in the Seyfert galaxy NGC 7319. The velocity of the outflow comes up to 500 km s−1 and its extent is 4 kpc. This outflow is one of the largest outflowing phenomenon that have ever been found in Seyfert galaxies. The radio emission found by van der Hulst & Rots (1981) aligns the outflowing gas. It suggests the radio emission has relation to the outflow. We have made higher resolution radio imaging of NGC 7319 with VLA to study in detail relation of radio emission to outflowing gas. These radio images have been compared to Hubble Space Telescope (HST) archival broad-band WFPC2 image. The systemic velocity 6740 km s−1 (Aoki et al. 1996) gives a distance of 90 Mpc for NGC 7319 assuming a Hubble constant H0=75 km s−1 Mpc−1. Thus 1″ corresponds to 450 pc.

Type
Part I. Stellar Cluster, Star Formation
Information
Symposium - International Astronomical Union , Volume 184: The Central Regions of the Galaxy and Galaxies , 1998 , pp. 115 - 116
Copyright
Copyright © Kluwer 1998 

References

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