Radio Galaxy Zoo Talk

ARG0001w4z, two separate emissions, or one-sided triple or double?

  • ChrisMolloy by ChrisMolloy

    Here's ARG0001w4z, which appears to be possibly two separate lobes, or a related single emission. The contour overlays below are centred on SDSS J131745.65+271302.4, which is east 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.
    VLASS contours in yellow, Wise Band 1 lime green.

    The centre lobe is positioned on SDSS J131745.65+271302.4, which is a #disk galaxy and has a z_sp=0.038 +/-0.00001. This object has recorded First flux emission, a radio reference in NED, and an ALLWISE reference, ALLWISE J131745.65+271301.8.

    SDSS J131745.65+271302.4

    enter image description here

    To the west is a #diffuse lobe, which at its core, appears to be a faint object. However, this object is not listed as a photometric object in SDSS, although there is a diffuse ir lobe at the same location. Whether this is the host of the emission is hard to determine. There is no ALLWISE reference at this location.

    As per the ARG comments left, and this being a possible #triple, this is hard to ascertain. Possibly two separate emissions. Furthermore, the First Wise Band 1 contour overlay below shows a further #diffuse one contour lobe slightly west of SDSS J131745.65+271302.4. This could possibly be an #artifact as it doesn't appear apparent in VLASS.

    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.

    As always, comments, suggestions, welcome.

    Posted

  • JeanTate by JeanTate

    I think there's no doubt that SDSS J131745.65+271302.4's nucleus is host of radio emission. However, whether it's also host of the two (other) #compact sources is, I think, impossible to say with any certainty, based on the analysis (and data) you've presented.

    Posted