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Chapter 22: Problem 19

How do astronomers locate supermassive black holes in galaxies?

Short Answer

Expert verified
Astronomers locate supermassive black holes in galaxies by observing the movement of stars and other celestial bodies, looking for X-ray emissions and other high-energy radiations, and using various astronomical tools and techniques. They confirm their findings through consistent observation and collaboration with other astronomers.

Step by step solution

01

Understanding the Nature of Black Holes

Black holes, especially supermassive ones, have a significant gravitational impact on their surroundings. They are generally located at the centers of galaxies, and influence the motion of the stars and other celestial objects around them. They are also known for their ability to consume matter and energy in their vicinity.
02

Identifying the Signtures of Black Holes

While black holes cannot be directly observed due to their nature of absorbing all light, astronomers can identify their presence through certain signatures. These include high-speed motion of stars near the center of galaxies, and high-energy radiation like X-ray emissions produced by the accumulation of matter before it is sucked into the black hole.
03

Utilizing Observation Techniques

Astronomers use various techniques and tools like space-based telescopes, and gravitational wave observatories to detect the signals caused by black holes. They look for drastic changes in X-ray emissions, and any anomalies in the motion pattern of celestial objects that may indicate the presence of supermassive black holes.
04

Confirming the Presence of a Black Hole

Astronomers confirm the presence of black holes through consistent observation, and often collaborate their findings with other teams to verify and validate their observations.

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Most popular questions from this chapter

How fast should a meter stick be moving in order to appear to be only \(60 \mathrm{~cm}\) long?

A twenty-third-century instructor at Starfleet Academy tells her students, "If someday your starship falls into a black hole, it'll be your own fault." Explain why it would require careful piloting to direct a spacecraft into a black hole.

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