ARG0003lab, unusual emission, morphology, hosts?

• by ChrisMolloy

  Here's ARG0003lab, an #unusual emission. This lobes in this ARG field have been tagged as a #nat or #wat, but could also be an atypical #triple, or #doublelobe, with an associated #compact lobe. The contour overlay image below is centred on SDSS J143822.81+034017.0, which is WSW of the ARG co-ordinates listed left.

  

  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 is SDSS J143822.81+034017.0, which has a z_ph=0.343 ± 0.1097. This galaxy is almost in the centre of the lobes, has recorded First flux emission, as well as radio references in NED.

  SDSS J143822.81+034017.0

  

  Another possible host for this emission is SDSS J143821.86+034013.2, which has a z_sp=0.225 +/-0.00004. This object has radio references in NED and SIMBAD, and an ALLWISE reference, ALLWISE J143821.84+034013.7. This galaxy is in a #cluster environment, and is positioned in-between the centre and western lobes.

  SDSS J143821.86+034013.2

  

  There is a radio reference for a galaxy positioned in-between the centre and eastern lobes, SDSS J143823.63+034022.4. This object has a z_ph=0.369 ± 0.0492, a radio reference in NED, and an ALLWISE reference, ALLWISE J143823.64+034023.0.

  SDSS J143823.63+034022.4

  

  And finally, there is a radio reference in NED for SDSS J143821.30+034013.3, which is positioned on the core of the west lobe. This object is listed as a star in SDSS DR14, and a galaxy in SDSS DR7. SDSS DR7 cites this object as having a z_ph=0.464 +/-0.138.

  SDSS J143821.30+034013.3

  

  In terms of morphology and host/s, whether this emission is a #nat, #wat, #triple, or #doublelobe, with the east or west lobes being separate #compact sources, or alternatively, even three separate #compact emissions, is hard to ascertain. Others may have an opinion on this.

  As always, comments, suggestions, welcome.

  Posted June 18, 2018 5:34 AM

• by JeanTate

  If there's more than one host, maybe we can add #overlap too! 😃

  This is a quite unusual source (or set of sources); I guess we'll have to wait for a higher resolution observation to understand it better, perhaps VLASS?

  Posted June 20, 2018 1:19 AM

• by ChrisMolloy in response to JeanTate's comment.

  Agree.

  Posted June 21, 2018 6:00 AM

• by ChrisMolloy in response to JeanTate's comment.

  It doesn't appear that this has been imaged in VLASS either.

  Posted July 23, 2018 4:36 AM