A faint trace of a host galaxy was also found.

It is currently the nearest known quasar, being 730 million light years away, and the one with the best view of its host galaxy.

In both cases the host galaxies are giant ellipticals.

This allows them to be used as a secondary standard candle to measure the distance to their host galaxies.

He said this was strong evidence that the host galaxy underwent a tremendous collapse in its earliest stages.

The new work suggests that such black holes can exert influences far beyond their host galaxies.

Millions of stars have been ripped from their host galaxy.

By measuring the luminosity of these events, the distance to their host galaxy can be estimated with good accuracy.

The black hole mass is tied to properties of its host galaxy.

However subsequent observations revealed that a normal host galaxy is probably present.