Loose Leaf For Explorations:  Introduction To Astronomy
Loose Leaf For Explorations: Introduction To Astronomy
9th Edition
ISBN: 9781260432145
Author: Thomas T Arny, Stephen E Schneider Professor
Publisher: McGraw-Hill Education
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Chapter 15, Problem 7TY

What evidence leads astronomers to believe that they have detected black holes?

  1. (a) They have seen tiny dark spots drift across the face of some distant stars.
  2. (b) They have detected pulses of ultraviolet radiation coming from within black holes.
  3. (c) They have seen X rays, perhaps from gas around a black hole, suddenly disappear as a companion star eclipses the hole.
  4. (d) They have seen a star suddenly disappear as it was swallowed by a black hole.
  5. (e) They have looked inside a black hole with X ray telescopes.
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