Radio Galaxy Zoo Talk

ARG0003dmc, unusual host, doublelobe?

  • ChrisMolloy by ChrisMolloy

    Here's ARG0003dmc. This ARG field appears to contain either two #compact lobes, or a #one-sided #doublelobe.

    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.

    The host for the centre emission appears to be SDSS J152531.90+061546.3, which has a z_sp=0.506 +/- 0.00003. This galaxy has recorded First flux emission, and an ALLWISE reference, ALLWISE J152531.92+061546.3. There doesn't appear to be any radio references in NED nor Simbad for this galaxy, and whilst quite faint, it appears to be #red and #green in colour.

    SDSS J152531.90+061546.3

    enter image description here

    As for the lobe to the NW there doesn't appear to be any radio references nor ir sources at the position of this lobe. There is the possibility that this emission could be related to the centre lobe, being a #one-sided #doublelobe, or possibly a #diffuse, #compact, #ifrs.

    As always, comments, suggestions, welcome.

    Posted

  • JeanTate by JeanTate in response to ChrisMolloy's comment.

    I think there's a possibility it's actually a #bent #triple: the faint FIRST emission to the SE could be the counter lobe to that you have identified in the NW. Unfortunately, neither NVSS nor TGSS is much help here (though maybe an NVSS contour overlay might be marginally so).

    Posted

  • ChrisMolloy by ChrisMolloy in response to JeanTate's comment.

    I wondered about that lobe to the SE after doing the post. Here's an NVSS contour overlay. Doesn't really help much.

    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, NVSS cyan.

    Posted

  • JeanTate by JeanTate in response to ChrisMolloy's comment.

    Actually, I think the NVSS contour overlay helps a lot ... it shows that the SE FIRST marginal source is likely not real, and that there is no SE lobe (or at least if there is one, it's very faint, which would make this source highly asymmetric).

    Posted

  • ChrisMolloy by ChrisMolloy in response to JeanTate's comment.

    And here's a TGSS First overlay for completeness. Interesting image. Possibly SE First lobe is an artefact.

    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, TGSS white.

    Posted