What is the primary evidence for the black hole discovered by Ghez?
X-ray emission
Gravitational lensing
Orbital motion of stars
Cosmic microwave background
Answer
The orbital motion of stars provided crucial evidence for the existence of a black hole, as observed by Andrea Ghez and her team. The peculiar trajectories and high speeds of certain stars orbiting the center of the Milky Way indicated the presence of a massive and compact object with immense gravitational influence. This object, characterized as Sagittarius A*, was identified as a supermassive black hole.
Stargazing Brilliance: The Andrea M. Ghez Astronomy Challenge
More Questions
Andrea M. Ghez's Nobel Prize-winning research was related to which galaxy?
What role does Andrea M. Ghez hold at UCLA?
The supermassive black hole discovered by Ghez is located where in the Milky Way?
Andrea M. Ghez's discovery was significant in confirming what astrophysical theory?
What technology did Ghez use to observe the center of our galaxy?
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