Home > Astronomy > Quasars and Galactive Collisions

Do quasars emit light?

Answer 1

Elena Antonova

A quasi-stellar quasar is a visible point source of light, millions/billions of light years away.

Similar to starlight, quasar light originates from the active nucleus of most

distant galaxy's Black Hole core.

Its luminosity could exceed a million times that of the Milky Way galaxy.

brightness.

Its mass could be a million times greater than that of the Sun.

We could be millions or billions of light years away from it.

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Answer 2

Ivy Allen

Yes, quasars are very bright, far-off celestial objects driven by supermassive black holes in the centers of galaxies. The intense light that quasars emit comes from matter that has accreted onto these black holes.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.