Other
Scientific paper
Sep 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...308..571m&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 308, Sept. 15, 1986, p. 571-575.
Other
11
Astronomical Spectroscopy, Ionized Gases, Plasma Jets, Seyfert Galaxies, Active Galaxies, Charge Coupled Devices, Galactic Nuclei, H Alpha Line, Red Shift
Scientific paper
A faint jetlike feature has been discovered projecting from the Seyfert I galaxy Markarian 315. This feature is visible in CCD images obtained through narrow-band filters centered on the redshifted forbidden O III and H-alpha lines but is not seen in continuum light. It extends 60 kpc to the northwest and continues for a total length of at least 80 kpc after bending back to the southeast. While the feature projects to a location a few kiloparsecs west of the nucleus, it may in fact bend to pass through the nucleus along an east to west direction. A decrease in the forbidden O III/H-alpha ratio with increasing distance from the nucleus suggests that the source of the ionization of the jetlike feature lies in the nucleus. A possible explanation of this unusual feature is that Markarian 315 is an active galaxy that has been perturbed by an interaction with another galaxy.
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