Multiple Choice
Long-lasting spiral density waves occur in the disk of a spiral galaxy when:
A) the spiral merges with another galaxy
B) the galaxy is young
C) the galaxy's disk is regularly disturbed
D) the galaxy absorbs a satellite galaxy
E) a supernova explosion takes place
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q26: How do we know that AGNs have
Q52: The Hubble tuning fork diagram represents an
Q56: Dark matter consists of material that emits
Q58: Give three examples of types of active
Q59: Roughly what percentage of the total mass
Q60: Stars in elliptical galaxies have velocities that:<br>A)
Q61: What type of galaxy is this? <img
Q68: What are the main components of an
Q80: What is the difference between a Seyfert
Q85: In spiral galaxies, the size of the