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What is the most probable mechanism for the initial triggering and subsequent maintenance of the ...

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What is the most probable mechanism for the initial triggering and subsequent maintenance of the ...

What is the most probable mechanism for the initial triggering and subsequent maintenance of the density wave that forms the visible arms in spiral galaxies?

(a)   Gravitational interaction from close passage of other galaxies.
(b)   Shock waves from supernova explosions of massive stars within the spiral arms.
(c)   The gravitational influence from the rotating central supermassive black hole at the galactic center upon the arm material.

Textbook

Discovering the Universe

Edition: 7^th

Authors: Kaufmann, Comins

Read 186 times

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staedtler Author

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6 years ago

On behalf of my study group and I, thank you

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