The Radio Emission of the Seyfert Galaxy NGC 7319

Details The Radio Emission of the Seyfert Galaxy NGC 7319 The Radio Emission of the Seyfert Galaxy NGC 7319

1998-12-19

arxiv.org/abs/astro-ph/9812365v1

Astronomy and Astrophysics

Astrophysics

10 pages, 7 figures (fig. 6 is a color PS), to be published in The Astrophysical Journal April 20, 1999 issue

Scientific paper

10.1086/307559

We present VLA maps of the Seyfert 2 galaxy NGC 7319 at 3.6, 6, and 20 cm. Sub-arcsecond resolution is achieved at 3.6 and 6 cm. The radio emission exhibits a triple structure on a scale of ~4'' (1.7 kpc). All three components have steep spectra, consistent with synchrotron radiation. We have also analyzed an HST archival, broad-band red image, which contains structure related to the radio components. In particular, a V-shaped feature in the HST image some 3.7'' (1.6 kpc) southwest of the nucleus is associated with highly blueshifted emission lines seen in ground-based spectra. We interpret the V-shaped feature as emission from gas compressed by the bow shock driven by the outwardly moving radio plasmoid.

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