ARG00020hu, morphology, hosts?
-
by ChrisMolloy
Here's ARG00020hu, which appears to be a #compact lobe centre, with possibly a #restarted, #bent, #asymmetric, #doublelobe. This ARG field is cross referenced in the How to describe the radio morphology? thread.
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 #compact emission appears to be SDSS J104602.05+251357.4, which has a z_ph=0.228 ± 0.0585. There doesn't appear to be any radio references in NED or Simbad for this object, although there is an ALLWISE reference, ALLWISE J104601.92+251357.6. And as per the classification comments left, this object does appear to have #red-outflows, and is possibly #merging.
A possible host for the #doublelobe emission could be SDSS J104559.22+251411.5. This is listed as an object in SDSS DR13 but not DR14, and is very faint and possibly #green. There is a radio reference in NED and there is possibly an ALLWISE reference, ALLWISE J104559.08+251359.6. This object also appears to have a SDSS DR9 z_ph=0.407 +/-0.210.
As per the comments in the How to describe the radio morphology? thread, the observation has been raised that the central #compact radio source could possibly have a higher redshift.
it's clear that the S radio source is a #compact, with host zph 0.228±0.059 SDSS J104602.05+251357.4, though I think it's a lot further away (higher redshift) than that(.)
SDSS DR9 gives a higher redshift for the #compact radio source, as being z_ph=0.616 +/-0.139 And further:
What is/are the host/s of the two other distinct radio sources? And are they a #doublelobe? a #corejet and an unrelated #hourglass? Something else??
Here's a First cut-out of the ARG field.
There is a radio reference in SIMBAD located near the centre of the lobe to the SW, so this emission could be an #hourglass. And interestingly, there is a radio reference in NED for SDSS J104602.07+251409.2, which is located just south of the north lobe. This object has z_ph=0.523 ± 0.1728, and appears to have an ALLWISE reference, ALLWISE J104602.07+251420.0.
Finally there is another radio reference in NED for
SDSS J104601.99+251433.0, which is located in the centre of the north emission. This object has a SDSS DR6 z_ph=0.364 +/-7.938.There is the possibility then that the north emission could be a #core-jet.
In sum, this ARG field could be a #doublelobe with a #compact radio emission, or a #compact lobe, #core-jet, and an #hourglass.
As always, comments, suggestions, welcome.
Posted