Once you have detected the possible presence of a black hole, what data do you need...

Once you have detected the possible presence of a black hole, what data do you need to prove that it is indeed a black hole and not a very massive star cluster?

Expert Solution

genius_generous answered 2 years ago

Multiple choice: The presence of a black hole in a galaxy core can be inferred from...

Multiple choice: The presence of a black hole in a galaxy core can be inferred from (a) the total mass of the galaxy; (b) the speeds of stars near the core; (c) the color of the galaxy; (d) the distance of the galaxy from the Milky Way Galaxy; or (e) the diminished brightness of starlight in the galaxy core, relative to surrounding areas. Multiple choice: Which one of the following statements about black holes is false? (a) Inside a black...

If space has no medium, than what is the black hole "punching" a hole in? If...

If space has no medium, than what is the black hole "punching" a hole in? If you answer spacetime, than what is spacetime?

Black holes Q: what is escape speed? Q: what is a black hole? Size? What is...

Black holes Q: what is escape speed? Q: what is a black hole? Size? What is the event horizon? Q: How to “see” black holes if they are black? Evidence for stellar mass black holes? Supermassive black holes?

What is the mass of the black hole at the center of our galaxy if a...

What is the mass of the black hole at the center of our galaxy if a star orbiting 0.0025 pc away has an orbital period of 7 years? Be careful of units here.

How massive would a black hole have to be in order for it to evaporate due...

How massive would a black hole have to be in order for it to evaporate due to Hawking radiation in only one year? How big is that mass compared to some object with which you are familiar? (On the surface of the Earth, 1 kg ? 2.2 lb.)

1. What is the evidence for a black hole at the center of the Milky Way?...

1. What is the evidence for a black hole at the center of the Milky Way? How does this compare to stellar size blackholes? How can these smaller blackholes be observed? 2. What is Hubble’s Law? In what situations does Hubble’s Law not apply? 3. What is the cosmic microwave background? What is its origin?

How do astronomers estimate the mass of the supermassive black hole at the center of our...

How do astronomers estimate the mass of the supermassive black hole at the center of our galaxy?

Describe, in detail, what would happen if you fell into a black hole, from both your...

Describe, in detail, what would happen if you fell into a black hole, from both your perspective, and the perspective of someone who is watching you fall in. You should include specific effects, including effects on space, time, and what you would see.

Once you have sequenced the genome, you still do not know what it means. You just...

Once you have sequenced the genome, you still do not know what it means. You just have a sequence of bases. What are ways you can identify if a sequence of DNA is a gene?

You are in a spaceship making measurements very close to a black hole. A partner's spaceship...

You are in a spaceship making measurements very close to a black hole. A partner's spaceship is orbiting the black hole at a much larger radius. Your partner sends messages to you using visible light pulses from a laser. When you receive the messages, do you expect to detect radio waves or gamma waves? Why? The answer is gamma waves, but I don't understand.

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