Intro to Astronomy

Glossary

study guides for every class

that actually explain what's on your next test

Merger

from class:

Intro to Astronomy

Definition

A merger is the process where two or more galaxies collide and combine to form a single, larger galaxy. This event significantly influences the structure and evolution of the resulting galaxy.

congrats on reading the definition of merger. now let's actually learn it.

ok, let's learn stuff

5 Must Know Facts For Your Next Test

  1. Galaxy mergers can trigger intense periods of star formation known as starbursts.
  2. Mergers are often responsible for the formation of elliptical galaxies from spiral galaxies.
  3. The supermassive black holes at the centers of merging galaxies may also merge, forming an even larger black hole.
  4. Tidal forces during a merger can create long tails of stars and gas that extend far into space.
  5. Mergers can activate or fuel active galactic nuclei (AGN) by funneling gas toward the central supermassive black hole.

Review Questions

  • What are some possible outcomes of a galaxy merger?
  • How do tidal forces affect galaxies during a merger?
  • In what way can galaxy mergers influence active galactic nuclei (AGN)?
© 2024 Fiveable Inc. All rights reserved.
AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.
Back
Glossary
Guides
Next