Radio Galaxy Zoo Talk

ARG00021hg, a doublelobe for the First emission to the SW?

  • ChrisMolloy by ChrisMolloy

    Here's ARG00021hg, which appears to be an #hourglass centre, possibly two #compact lobes SW or a #doublelobe, and a #diffuse #compact lobe centre E. This ARG field is cross referenced in the How to describe the radio morphology? thread.

    With regards to the image below, I've centred this on SDSS J160425.37+245117.2 to more fully include the WISE emission to the south.

    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 contours in red, Wise Band 1 lime green.

    To begin, the host of the #diffuse compact lobe to the E is SDSS J160430.12+245212.7, which has recorded First flux emission, and a z_ph=0.674 ± 0.0468. This galaxy has an ALLWISE reference, ALLWISE J160430.10+245212.9, but no radio references in NED or SIMBAD.

    SDSS J160430.12+245212.7

    enter image description here

    The #hourglass, centre, seems to be positioned on SDSS J160425.29+245209.9, which is listed as a star in SDSS DR13. This object appears to have an ALLWISE reference also, ALLWISE J160424.51+245158.4.

    SDSS J160425.29+245209.9

    enter image description here

    The central question with this emission relates to the First lobes to the SW. Are these two separate #compact sources or are they a #doublelobe? There doesn't seem to be any Wise emission that coincides with these lobes, nor is there any optical hosts either. However, there is an ALLWISE reference in the centre of these lobes, ALLWISE J160421.01+245134.2, which raises the possibility of this being a #doublelobe emission. And, there is a radio reference in NED for SDSS J160419.91+245138.5, which is just south of the NW First lobe, and has a z_ph=0.187 ± 0.0245. This object has an ALLWISE reference, ALLWISE J160419.89+245138.6.

    SDSS J160419.91+245138.5

    enter image description here

    As always, comments, suggestions, welcome.

    Posted