ARG0002955, #Hourglass with a few possible hosts, & #compact to the NE with #noir, but just visible host
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by
ChrisMolloy
Here's ARG0002955, an #hourglass in the centre (west), and a #compact to the NE, with no visible ir host.
The contour overlay image in this post was created from sources, and using methods, described in this RGZ Talk
thread.There are several possible sources for the #hourglass emission. The #hourglass appears centred on SDSS J105013.15+214429.2 (DR7 reference), which is listed as a star and is near the centre of the lobes. There are no radio references for this object.
A possible host could be SDSS J105013.52+214430.1, a #green galaxy, which has a z_ph=0.393 ± 0.070, and contains a number of Radio references in NED.
Other hosts could include, SDSS J105013.43+214434.5,
and SDSS J105013.01+214423.4, also near the centre of the lobes,
which are both listed as stars, and are to the north and south west of SDSS J105013.52+214430.1 respectively. NED has Radio references for both these objects.
There is an ALLWISE reference also, ALLWISE J105013.28+214430.4, which is centred between SDSS J105013.52+214430.1 and SDSS J105013.15+214429.2. Below is an ALADIN overlay, with the red dots ALLWISE sources, and ALLWISE J105013.28+214430.4 highlighted in blue.
In terms of a definitive host for the #hourglass, unsure on this.
The #compact lobe to the NE appears to have #noir source as per the ARG image left, and the classification comments. However, the host appears to be SDSS J105016.40+214500.0, a very faint galaxy, with a z_ph=0.750 ± 0.1768. NED and SIMBAD have Radio references for this galaxy, but there is no ALLWISE listing, as can be seen in the above ALADIN image.
Here's a zoomed in image of SDSS J105016.40+214500.0,
with the galaxy just visible in the centre of the image.So, a very distant, faint, possible host.
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by
JeanTate
Cool! 😃
Posted