Radio Galaxy Zoo Talk

ARG00029sx - strange z_sp 0.515 giant galaxy hosting a triple

  • JeanTate by JeanTate

    At a redshift of 0.515, even the biggest galaxies look barely bigger than points in SDSS images; but not SDSS J165208.45+212526.2:

    enter image description here

    No doubt about it hosting an AGN and a pair of jets, terminating in lobes:

    enter image description here

    Its redshift puts the strong [OIII] emission lines into the i band, so it looks red; but if z were ~0.1, say, would this galaxy appear green? I don't think so, if only because the continuum is too strong ...

    enter image description here

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

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