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It could be, but the definition quasi-star depends on the radiation output, NOT the shape.
A quasar is a galaxy that is radiating massive amount of radioactive energy. A quasar MAY have a black hole at it's center. A black hole is just dead star that collapsed in on itself.
A quasar is believed to have a supermassive black hole at its center. The radiation is emitted outside the black hole's event horizon - from matter that is falling into the black hole.
I said SIZE! Look in the dicussion for your answers. Choose one!
50% energy
Note: Power is energy per unit time. The quick variation in the power output implies that it must come from a region that is only a few light-days or light-hours across - in other words, much smaller than a galaxy.The amount of power emitted (much more than an entire normal galaxy!), combined with the fact that this power output is sustained for a long time, suggest that none of the previously-known mechanisms - such as nuclear fusion from a regular star - can be involved in producing that amount of power.
As material falls into a Quasar, it emits much of the electromagnetic spectrum. As material is just about to pass the event horizon, cosmic rays (the most energic electromagnetic waves we know of) are released.
quasar
A quasar does that.
gravitational potential energy
A supernova explosion releases greatly more energy than our Sun in its entire lifetime.
Quasar