Radio Galaxy Zoo Talk

ARG0002hn3, doublelobe?

  • ChrisMolloy by ChrisMolloy

    Here's ARG0002hn3, which appears to be a possible #doublelobe. The ARG contour overlay image below, is centred slightly west of the co-ordinates listed left, as there is no photometric object at that position.

    enter image description here

    The contour overlay image in this post was created from sources, and using methods, described in this RGZ Talk
    thread.
    First in red, Wise band 1 lime green.

    A possible host for this emission appears to be
    SDSS J133853.20+174815.2
    , a faint galaxy with a z_ph=0.501 ± 0.2012. This object is positioned in the centre of the lobes, has a radio reference in NED, but no ALLWISE nor SIMBAD references.


    SDSS J133853.20+174815.2

    enter image description here

    There are radio references in NED for
    SDSS J133852.88+174756.5, a faint galaxy, with a z_ph=0.554 ± 0.0422. This object is positioned near the NE edge of the south First lobe. There doesn't appear to be any other radio references in SIMBAD nor ALLWISE for this galaxy, and if SDSS J133852.88+174756.5 is the host of these emissions, then this could be a #one-sided #doublelobe.

    SDSS J133852.88+174756.5

    enter image description here

    And finally, there is an ALLWISE reference, ALLWISE J133852.47+174755.7, positioned on SDSS J133852.45+174755.6, which has a z_sp=0.548 +/-0.00015. This galaxy has a strong Wise Band 1 contour, is positioned slightly NE of the centre of the south First lobe, and is quite visible in the ir, in the ARG image left. Again, if this object were the host of the emissions, then these lobes could be a #one-sided #doublelobe.

    SDSS J133852.45+174755.6

    enter image description here

    As always, comments, suggestions, welcome.

    Posted

  • ivywong by ivywong scientist, admin

    I think that the host galaxy is not visible in SDSS but slightly more visible in the WISE image

    Posted

  • JeanTate by JeanTate

    FWIW, I think the host is most likely SDSS J133853.20+174815.2, which is "invisible" in the standard SDSS image (made up of gri bands), but the photometric pipeline says there's a galaxy there (in this case, I think it's correct). Oddly, there's no apparent, corresponding, WISE source ...

    Posted