Elliptical + hump

https://www.legacysurvey.org//viewer/?ra=2.4966&dec=-57.0207&layer=ls-dr9&zoom=15

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possibly a double nuclei resulting from a past merging event

yeah was thinking that, but WISE doesn’t show anything double. Maybe just the central bulge of stars from one of the two pre-merger galaxies lagging behind, like still in the process of getting equalized among the total mass?

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WISE is pretty low resolution. Probably cant resolve the second nucleus.