Exam 16: Normal and Active Galaxies: Building Blocks of the Universe

Quasars are the brightest objects in the universe.

Except for the Local Group, galaxies seem to be isolated and randomly in space.

Like Herbig- Haro objects associated with protostars, the lobes around radio galaxies are the result of _ streaming from the active nucleus. Describe their alignment.

The Milky Way is smaller than most members of the Local Group.

When observing a quasar, we are probably looking at a stage of evolution in the very early universe.

A spherical galaxy, like M87, which looks like a monster globular cluster, is type

Briefly describe how Hubble classified the galaxies visually.

Which type of galaxy has a stellar disk, but without gas and dust?

Centaurus A is the closest lobe radio galaxy, and may be a collision between a spiral and an elliptical galaxy.

Hubble divided the spirals into normal and _ categories.

A tightly wound barred spiral would be classified as

Virtually all galaxies are moving away from the Milky Way.

Who invented the galaxy classes, and what three major groups did he invent?

You observe a spiral galaxy with a large central bulge and tightly wrapped arms. It would be classified a(n)

The Virgo Cluster of galaxies is smaller than the Local Group.