Radio Galaxy Zoo Talk

ARG0003cpn, host?

  • ChrisMolloy by ChrisMolloy

    Here's ARG0003cpn, which is an extended #doublelobe. The contour overlay below is centred on SDSS J151930.31+063352.3, which is WSW of the ARG co-ordinates listed left.

    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.

    In terms of a host for this emission there doesn't appear to be any apparent radio references in the centre of the lobes, or relatively near by. However, there are a number of potential ALLWISE candidates.

    SDSS J151930.10+063334.4, which is listed as a star has an ALLWISE reference, ALLWISE J151930.08+063334.5. This object is positioned in the centre of the lobes.

    SDSS J151930.10+063334.4

    enter image description here

    SDSS J151929.69+063336.0, which is a red galaxy, is also positioned in the centre of the lobes. This object has a z_sp=0.525 +/-0.00013, and an ALLWISE reference, ALLWISE J151929.66+063335.5.

    SDSS J151929.69+063336.0

    enter image description here

    There are a number of other potential hosts to the ENE and WSW, of the centre of the lobes, with requisite ALLWISE references. However, it is hard to determine which could be a potential radio object without any radio references.
    And whether this emission could be a giant is hard to determine without a concrete host.

    This ARG field doesn't appear to have been imaged in VLASS as yet.

    As always, comments, suggestions, welcome.

    Posted

  • JeanTate by JeanTate

    There are quite a few galaxies in the vicinity of the midpoint between the two lobes, and they seem to have several different redshifts, so perhaps this is an overlap of two or more galaxy groups/clusters. I agree that without an unambiguous radio core it's impossible to determine what the host is.

    Posted