Radio Galaxy Zoo Talk

ARG0002oe3, doublelobe, hosts?

  • ChrisMolloy by ChrisMolloy

    Here's ARG0002oe3, which appears to be a #slipstrike #doublelobe with a faint #compact emission. The contour overlay below is centred on SDSS J090440.89+145450.9, which is SSW of the ARG co-ordinates listed left. This emission is also cross referenced in the ARG field ARG0002of6.

    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.

    A possible host for the emission could be SDSS J090440.74+145451.8, which has a z_ph=0.652 ± 0.0672. This object has a radio reference in NED and an ALLWISE reference, ALLWISE J090440.72+145452.2.

    SDSS J090440.74+145451.8

    enter image description here

    Another possible host for the #doublelobe, as per the ARG comments left, is SDSS J090440.89+145450.9, which has a z_ph=0.403 ± 0.0936. This object has no radio references in NED or SIMBAD, nor an ALLWISE reference. This galaxy is also #green.

    SDSS J090440.89+145450.9

    enter image description here

    The smaller #compact lobe, centre west, is positioned on SDSS J090440.56+145457.4, which has a z_ph=0.705 ± 0.0595. This object has radio references in NED.

    SDSS J090440.56+145457.4

    enter image description here

    Interestingly, there are radio references in SIMBAD for SDSS J090441.04+145509.3. This object has a z_sp=0.077 +/-0.00001, and has recorded First flux emission. This object also has an ALLWISE reference, either ALLWISE J090441.18+145509.4 or J090440.86+145509.0.

    SDSS J090441.04+145509.3

    enter image description here

    Finally, there is always the possibility the #doublelobe is #overlapping an emission positioned on SDSS J090441.04+145509.3. Or maybe this could be a stand alone emission, with SDSS J090441.04+145509.3 being the host of the northern lobe, and the counterpart to the south being a #headtail.

    As always, comments, suggestions, welcome.

    Posted

  • JeanTate by JeanTate

    Nice. 😃

    Likely two hosts (so #overlap), but is the host of the #asym #double the red or the #green object?

    Also, the ~edge-on spiral is very likely foreground to the radio emission, but in passing through/around it, there seems to be no effect (no dispersion, no lensing, no absorption, ...). I wonder how common that is?

    I posted a link to this thread in GZ Talk (here), as GhostSheep is interested in objects like the red-green pair.

    Posted

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

    Likely two hosts (so #overlap), but is the host of the #asym #double the red or the #green object?

    Unsure on this.

    Also, the ~edge-on spiral is very likely foreground to the radio emission, but in passing through/around it, there seems to be no effect (no dispersion, no lensing, no absorption, ...). I wonder how common that is?

    That is an interesting question. I wonder if any of the science team have a view on this.

    Posted