What produces most gamma radiation within a galaxy?

If we look at a galaxy in the gamma-ray wavelengths, what produces most of the radiation we see?



I don't think it's supernova events, since those are infrequent, as well as transient. My best guess is that it's coming from the plasmaspheres of all the galaxy's stars, when magnetic field lines reconnect. But not totally sure on that.What produces most gamma radiation within a galaxy?
The most gamma radiation produces is from quasars and black holes
most radioactive materials
alpha radiation = high-energy alpha particle leaves core
beta radiation = neutron turns into proton, shooting high-energy elektron out of the atom
gamma radiation = energy released from alpha and beta(and K-capture, elektron from K-shell gets caught in core, reacting with a proton to form a neutron) radiation by mass-reduction caused by nuclear decay
Plus actual gamma rays can be formed by quasars from a super massive black holes by In the early universe when there was lots of hydrogen, huge stars formed that had several hundred times the mass of the Sun. These stars eventually collapsed into black holes. Matter in an accretion disk spins in to the event horizon of a black hole. As it moves ever faster, electrons are stripped off and the atoms become charged ions. More material moves toward the event horizon than can pass through it and the “run off” ions form two opposing jets like a dynamo or a quasars or even more powerful than a quasar is called a blazarWhat produces most gamma radiation within a galaxy?
It depends on wavelength, but for quiescent galaxies (with little nuclear activity) the gamma radiation comes primarily from cosmic rays internal to the galaxy, impacting on gas molecules in molecular clouds. The whole interstellar medium glows in gamma rays, the denser parts more than the less dense.
Wazzup!! I think it's a supernovae. lolWhat produces most gamma radiation within a galaxy?
idk