Our theories for the origin of spiral arms include each of the following EXCEPT ONE. Which is the EXCEPTION?
A) density waves
B) self-propagating star formation
C) the natural, gradual evolution from ellipticals into spirals
D) interactions between galaxies
Correct Answer:
Verified
Q72: Voids are believed to contain:
A)nothing.
B)gas and faint
Q73: Gravity is a long-range force, and its
Q74: Large clouds of very hot gas that
Q75: A starburst galaxy is characterized by a
Q76: One unusual result of galaxy interactions is:
A)large
Q78: How much of the mass of a
Q79: In the galaxy cluster 1E0657-56, the dark
Q80: It is proposed that the ordinary matter
Q81: Why are the gravitational lens image arcs
Q82: All of the following systems are gravitationally
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents