Radio Galaxy Zoo Talk

ARG0002h8q, #doublelobe and compact

  • ChrisMolloy by ChrisMolloy

    Here's ARG0002h8q, which is a #doublelobe centre and #compact lobe to the NW. The contour overlay below is centred on SDSS J080106.96+175845.2, which is SW 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.     First in red.

    The host for the emission appears to be SDSS J080106.96+175845.2, which has a z_sp=0.144 +/-0.00003. This object has radio references in NED and an ALLWISE reference, ALLWISE J080106.96+175845.0. This galaxy is listed as the Brightest galaxy in a cluster, and there is also a SIMBAD reference, possibly for this emission, which is slightly NW of this galaxy. SDSS J080107.19+175849.7, (which is NE of SDSS J080106.96+175845.2) is partially #overlapping SDSS J080106.96+175845.2.

    SDSS J080106.96+175845.2

    enter image description here

    With regards to SDSS J080107.19+175849.7, there is a radio reference in SIMBAD for this galaxy, although there doesn't appear to be any references in NED . It has a z_sp=0.140 +/-0.00002, and also has an ALLWISE reference, ALLWISE J080107.20+175849.8 . Whether this object is the host of the emission is hard to determine.

    SDSS J080107.19+175849.7

    enter image description here

    The #compact lobe to the NW is positioned on SDSS J080103.93+175931.9, which is listed as a star. This object has recorded First flux emission, and an ALLWISE reference, ALLWISE J080103.93+175931.2. Possibly this object is a #QSO, but there doesn't appear to be a citing for this in NED, nor SIMBAD.

    SDSS J080103.93+175931.9

    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

    The size and positioning of the radio contours strongly suggest that SDSS J080106.96+175845.2 is indeed the host of the FIRST emission. If so, it's definitely a #slipstrike source.

    Curiously though, the STAR SDSS J080106.55+175854.9 looks to be ~midway between the two lobes, and the ridgelines of the lobes both point to it! 😮

    enter image description here

    Assuming SDSS J080106.55+175854.9 is a distant (background) galaxy (and not an artifact or tidal debris from SDSS J080106.96+175845.2), it could be the main host, with SDSS J080106.96+175845.2 being a weak foreground overlap ...

    Posted

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

    Assuming SDSS J080106.55+175854.9 is a distant (background) galaxy (and not an artifact or tidal debris from SDSS J080106.96+175845.2), it could be the main host, with SDSS J080106.96+175845.2 being a weak foreground overlap ...

    Could be. The reason I discounted SDSS J080106.55+175854.9, was there was no apparent ALLWISE reference.

    Posted

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

    Good call ... it'd be a very unusual host for such a bright double to not show up in WISE ...

    Posted