The lowest surface brightness disc galaxy known

Abstract
We report the discovery of a galaxy with a prominent bulge and a dominant extremely low surface brightness disc component. The profile of this galaxy is very similar to the recently discovered giant low surface brightness galaxy Malin 1. The disc central surface brightness is found to be ∼26.4 , some 1.5 mag fainter than Malin 1 and thus by far the lowest yet observed.

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