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symbo symbo
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Posts: 1970
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7 years ago
The STRONGEST evidence that there is a supermassive black hole at the center of our neighboring galaxy, the Andromeda Galaxy (M31), is that

(a)   the orbital speeds of stars 50 ly from the center correspond to a gravitating mass of tens of millions of solar masses.
(b)   the Hubble Space Telescope has detected a bright, point-like nucleus less than 1 parsec in size at the center of the galaxy.
(c)   there is a bright jet of material extending for 6000 ly from the nucleus of the galaxy.
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
Authors:
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hyponoticahyponotica
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7 years ago
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symbo Author
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6 years ago
It's correct Smiling Face with Open Mouth
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