collisional ring galaxy
noun1
Astronomy, Natural sciences A type of galaxy that is annulus-shaped, as the result of having collided with another galaxy, that punched through the now collisional ring galaxy's former disc, producing the ring.
- Synonyms
- CRG
- Derived terms
- CRG
- Related terms
- collisional ring, collisional ring system
- Hypernyms
- disc galaxy, galaxy, interacting galaxy, peculiar galaxy, ring galaxy
- Coordinate terms
- Einstein ring, polar-ring galaxy, ringed galaxy, ring galaxy, stellar stream