IR Line?
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by HannaViolet
What is the long IR line that cuts diagonally between the radio signals?
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by JeanTate
Welcome to RGZ, HannaViolet 😃
It's what we call a diffraction spike, a kind of #artifact produced by light (or IR in this case) bouncing off the vanes which support a mirror in the WISE telescope. The same thing happens for SDSS, and you can see the star in this zoomed out view (the spike is in a different direction because the telescopes were pointing differently):
Interestingly, the host of the #double may be SDSS J074149.28+225301.4, which has a photometric redshift (zph) of 0.533±0.121. If so, this may be a very rare kind of object called a #green #SDRAGN 😮
Hope this helps, and happy hunting! 😃
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