[RadioAstronomer]

Question - Do super-massive black holes, such as those found at the center of our galaxy, fulfill the "non-visible" mass questions?

Nope. (will go into it further this evening)

I have read many times that black holes produce enormous Gamma emissions during accretion - wouldn't a centrally located SMBH also produce steady amounts of gamma?

I need to do a bit of research. :-)

Will see what I can find tonight.

[Shryke]

Tonight?!?! Arrrrgggh, I'm going to be handicapped with the spirit of St. Pat!