There is a diffuse gamma glow around the center. There are only a couple of paragraphs quoting the most silly versions of explanations: Dark Matter interaction and spinning neutron stars.

The article offers no answers.

IMO, it’s FAR more likely we just don’t entirely know how dense the region is and what atoms/particles are in it, and it could be as silly as interstellar particles getting excited from high energy particles that escape the SMBH accretion disc. Or some similarly ‘common’ thing.

Tune in next week for the next exciting installment!