active galaxy

Active galaxies represent an important area of astronomical research.

These features are commonly associated with many active galaxies.

In the active galaxies, black holes are seen as having masses far greater than a billion suns.

The largest polar jets are those seen in active galaxies such as quasars.

One mystery is why some active galaxies produce copious radio waves and others none.

The bright source in the upper left is an active galaxy in the cluster.

The total list of active galaxies was cut down to those within a limited distance of Earth to avoid detection problems.

The different types of radio-loud active galaxies are linked by unified models.

His primary research interests are in the fields of quasars, active galaxies and cosmology.

His fields of scientific interest include active galaxies, cosmology, and the three-body problem.

Galaxies with a quasar in process are often called active galaxies.

"Steve was a world-leading astrophysicist who worked on active galaxies and cosmology."

Radio-loud active galaxy is unambiguous, and so is often used in this article.

He establishes that quarsars are active galaxies, and among the most distant objects in the universe.

Like all (unobscured) active galaxies, quasars can be strong X-ray sources.

But, since they couldn't tell whether they were rating an active galaxy or not, their ratings should at least be internally consistent.

What powers the most extreme active galaxies?

A beautiful poster illustrating an Active Galaxy features one of the three activities on the reverse side.

He stayed until 1942, studying a class of active galaxies now called Seyfert galaxies.

Water masers are useful to observe nuclear accretion disks in active galaxies.

The first non-visual study of galaxies, particularly active galaxies, was made using radio frequencies.

Blazars are believed to be an active galaxy with a relativistic jet that is pointed in the direction of the Earth.

These high-energy processes play a major role at sites throughout the universe ranging from magnetospheres to active galaxies.

There were too many illusions, too many ways in the active galaxy for the eye to be fooled.

If Fermi's catalog of the universe were a recipe, the two major ingredients would be active galaxies and pure mystery.