ARG0003ptx - fading doublelobe?
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by JeanTate
ARG0003ptx contains what may be a #doublelobe, but its E hotspot is almost gone, and its W one seems to have an 'inverted' structure (i.e. the hotspot is closer to the host than most of the emission). The W lobe is also rather diffuse.
The host is not visible in SDSS, and likely just a faint smudge in WISE too; if it's an elliptical (giant or otherwise), it must have a quite high z (say >~0.7) ...
Is this a typical morphology for a fading doublelobe? If not, what is the likely cause of this somewhat unusual structure?
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by ivywong scientist, admin
Looking at both the FIRST and NVSS links, this does look like a #doublelobe but unfortunately the IR host is quite faint so the host is likely to be at a higher z (likely >0.5)
The morphology /appearance is likely to be due to the survey depth/sensitivity of FIRST/NVSS as well as the redshift of the source.
Posted