All images are from the B filter data. The intensities are inverted (analogous to a photographic negative). Intensities are logarithmically stretched between varying intensity cutoffs.
HCG 87a (the vertical line to the right hand side
is a join between 2 detectors (i.e. a chip seam)). |
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HCG 87b |
HCG 87b |
HCG 87c. |
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HCG 87e. |