Why are there bright spiral arms in the disk of the Milky Way? Bright stars are

ID: 637577 • Letter: W

Question

Why are there bright spiral arms in the disk of the Milky Way?

Bright stars are spread evenly throughout the disk, we just can't see them because most are blocked by thick clouds of gas and dust.

Stars are more likely to collide in the arms, so we see brighter events.

Stars form in the nucleus and are sprayed throughout the galaxy by the spiral arms.

They are regions of higher density, where gas entering them is compressed to form stars

Bright stars are spread evenly throughout the disk, we just can't see them because most are blocked by thick clouds of gas and dust.

Stars are more likely to collide in the arms, so we see brighter events.

Stars form in the nucleus and are sprayed throughout the galaxy by the spiral arms.

They are regions of higher density, where gas entering them is compressed to form stars

ANSWER-They are regions of higher density,where gas entering them is compressed to form stars.

spiral arms usually contains many young ,blue stars due to high mass desity and the high rate of star formation which makes the arms looks so bright.

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