He one-shotted Silver Surfer (or stomped him if it wasn't a one-shot... haven't read it in a while).
Originally posted by EntityIn 616 he absorbed Quasar's energies...
Could Absorbing Man take on the very properties of Kyle's ring itself?If not what would happen if he touched a GL ring?
Also, he absorbed pretty much everything when he fought people. He even absorbed intangible...
So I would say yes.