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Blittle5 Blittle5
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2 months ago

Why are supermassive black holes believed to be located at the centre of many galaxies?



because the rotation curve of the galaxy indicates that 90% of the galaxy is dark matter



because the orbital motion of material near the centre is very fast and indicates a very massive core



because the shape of the bulge in all spiral galaxies can be supported only by a supermassive black hole



because the spiral structure requires a black hole to maintain the spiral arms

Textbook 
ASTRO

ASTRO


Edition: 3rd
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chandlerdeanechandlerdeane
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Blittle5 Author
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2 months ago
Just got PERFECT on my quiz
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Yesterday
Good timing, thanks!
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2 hours ago
Thanks
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