Radio Galaxy Zoo Talk

ARG00012uy, hourglass host?

  • ChrisMolloy by ChrisMolloy

    Here's ARG00012uy, which is an #hourglass centre, and a #compact lobe to the north. This ARG field is cross referenced in the following post ARG00012uy What is the source of the hourglass radio contour?

    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 the #hourglass emission, there are radio references in NED for SDSS J143626.70+412704.1, which is listed as a star in SDSS DR14. This object is slightly centre west of the south lobe. There are also radio references in SIMBAD, which appear to be positioned on each lobe respectively.

    SDSS J143626.70+412704.1

    enter image description here

    There is a very faint object NE of SDSS J143626.70+412704.1, which appears to be positioned in or near the middle of the lobes. However, this object doesn't appear to be a photometric object in SDSS. Coincidently, there is an ALLWISE reference at about the same location as the faint object, ALLWISE J143627.65+412710.1, and in the contour overlay above there is a #diffuse ir source in the middle of the lobes.

    SDSS J143626.70+412704.1, and NE, the very faint object.

    enter image description here

    Finally, the #compact lobe to the north is positioned on SDSS J143626.91+412738.9, which has a z_ph=0.249 ± 0.0181. This object has recorded First flux emission, appears slightly #green, has radio a reference in NED, and an ALLWISE reference, ALLWISE J143626.85+412738.8.

    SDSS J143626.91+412738.9

    enter image description here

    It doesn't appear that this ARG field has been imaged in VLASS as yet.

    As always, comments, suggestions, welcome.

    Posted

  • JeanTate by JeanTate

    I think the green WISE band1 contours fairly clearly indicate that there's an IR source just about where you'd expect the host of the hourglass to be. If it's ALLWISE J143626.85+412738.8, then I think that would be the host.

    If there were an optical counterpart, it might show up in DECaLS (which goes deeper than SDSS), but unfortunately FIRSTJ143627.4+412704 is outside the DECaLS footprint.

    Posted

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

    Yeah, it's not in DECaLS. Checked.

    Posted