ARG0002ib6 - only artifacts?
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by JeanTate
WizardHowl writes, in the comment
#compact everything else is probably #artefact of large bright triple due E, seen clearly in both FIRST and NVSS
Here's a zoomed-our FIRST image:
And an NVSS image:
While the linear streaks and 'compact blobs in a line' are likely artifacts (or mostly so), there are also some faint, diffuse clouds in the FIRST image. Are they artifacts too?
Posted
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by zutopian
Here is the SkyView (NVSS) image.:
Here is the SDSS image.:
The elliptical is NGC 5490. It has 171 Refs in NED.
Posted
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Based on the images from both FIRST and NVSS, I would say the streaks visible are artifacts, but the 3 triangular blobs are real, as is the bright object on the line, but probably not quite as pronounced if the streak wasn't there.
The visual sources for the various objects are:
- Left bright source- 1237668297678651437 large elliptical
- Center source- 1237668297678586146 probable quasar
- Above source- 1237668297678586504 spectrally confirmed quasar Z=6.98
- Right source- 1237668297678586125 spectrally confirmed quasar Z=2.56
Posted
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by JeanTate
A first, zoomed out, overlay:
<>
I'll add NVSS, and do some zoom-ins, later.
Boilerplate: SDSS image per
http://skyservice.pha.jhu.edu/DR10/ImgCutout/getjpeg.aspx
, FIRST contours derived from FITS file produced using SkyView with Python code described in this RGZ Talk thread. Image center per the ARG image (left; J2000).Posted