ARG0001t4p - non-elliptical with #corejet?

by JeanTate

Morphology of the most likely host is elongated, close to that of a huge, distant edge-on disk galaxy (spiral). And it's red. z_sp 0.316; z_ph 0.366 ± 0.0286/0.348 ± 0.0545.

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Posted July 15, 2014 8:14 PM

by JeanTate

Cruel cosmic coincidence (lopsided doublelobe far in the background, host invisible), or does the nucleus of the early -type edge-on disk galaxy SDSS J123442.88+283508.1 host a radio AGN with a jet and a lobe?

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There doesn't seem to be anything all that unusual about the SDSS spectrum, other than that it's probably considerably reddened due to dust:

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Boilerplate: SDSS image per http://skyservice.pha.jhu.edu/DR10/ImgCutout/getjpeg.aspx, FIRST (red) contours derived from FITS file produced using SkyView with Python code described in this RGZ Talk thread. Image center per the ARG image (left; J2000.0). "z_sp" is the SDSS spectroscopic redshift of the galaxy in the center.

Posted July 27, 2014 9:00 PM

by WizardHowl in response to JeanTate's comment.

I don't think this is coincidence because the peak of the FIRST emission is so exactly coincident with the optical core. Whether this is a lobe is another matter: in IR there is a very slight extension in the same direction as in the radio, which might, in a cruel coincidence of a different kind, suggest a background radio galaxy partly obscured by the red edge-on disk. This could also just be due to material belonging to the disk galaxy itself, though, so I think higher resolution observations in radio will be needed to see if this is a lobed system or a pair of compact sources. Either way, it is still an interesting system.

Posted July 27, 2014 9:35 PM