one-sided lobe or two radio galaxies?
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by WizardHowl
The contours of the radio made it appear as if both the bright IR sources in the centre of the image were radio sources but the contours overlapped into a single source, so I marked both galaxies as being associated with it. Upon reflection, it might also be that the lower galaxy has a one-sided lobe that just happens to coincide with the other galaxy from our line of sight. If so, then perhaps NVSS is able to resolve a more diffuse lobe below that FIRST does not show?
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by enno.middelberg scientist, translator
I was about to argue that your latter hypothesis is correct, but I think one can argue one way or another. We won't be able to decide based on these data alone.
Btw, NVSS has a resolution of around 45 arcsec, much lower than that of FIRST, which is 5 arcsec.
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by DocR scientist
I have NO idea what we are looking at here. 3 possible IR/optical sources connected with this beast. Here's the SDSS overlay:
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