Describe the evidence for a supermassive black hole at the center of our Galaxy.

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genius_generous answered 6 months ago

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 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?

The supermassive black hole in the center of the Milky Way has a mass of roughly...

The supermassive black hole in the center of the Milky Way has a mass of roughly 3 million M⊙and the Milky Way is approximately10 billion years old. Estimate the average amount of matter accreted by the black hole per year since that time and use that information to propose modes by which the black hole has grown. That is, make some simple models which describe what the black hole might have eaten, and how much it has eaten as a...

In April 2019, the Event Horizon Telescope collaboration announced that it had made the first spatially resolved images of a black hole, specifically the supermassive black hole in the center of the M87 galaxy

In April 2019, the Event Horizon Telescope collaboration announced that it had made the first spatially resolved images of a black hole, specifically the supermassive black hole in the center of the M87 galaxy. Using a wavelength of 1.3 mm, the EHT managed to achieve a resolution of approximately 1.2 x 10-10 radians.a) What is the diameter of the primary aperture of the EHT? How does this compare to the diameter of the Earth?b) Research the Event Horizon Telescope and...

Which of these are actual evidence for the existence of a black hole in the center...

Which of these are actual evidence for the existence of a black hole in the center of the Milky Way, and which are not? Stars are observed to disappear into the black hole Bright quasar emission is detected from the center of the galaxy Telescopes have been used to take high resolution images of the black hole's event horizon Astronomers observe an extremely bright and compact radio source The closest approach of stellar orbits near the center of the galaxy...

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?

The singularity at the center of a black hole is predicted to be a region of...

The singularity at the center of a black hole is predicted to be a region of zero volume and infinite density that contains all of the black hole's mass. It is a point at which all currently known physical laws break down. Yet in a black hole, this "terrible point" is hidden from view behind an event horizon that prevents any knowledge about the singularity reaching the outside universe. Astronomers continue to spend considerable effort trying to understand the nature...

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...

A The U.S.S. Enterprise (NCC‑1701) approaches an unknown system with a Black Hole at the center....

A The U.S.S. Enterprise (NCC‑1701) approaches an unknown system with a Black Hole at the center. One of the planets in this system is observed to have an orbit with a radius of R1 = 3.5 AU and a period of T1 = 0.7 years. What is the mass of the Black Hole compared to the mass of the Sun? The mass of the Black Hole, MBH = Another planet in the system is observed to have an orbital radius...

A Black Hole has an event horizon, located at the Schwartzschild radius from the center of...

A Black Hole has an event horizon, located at the Schwartzschild radius from the center of the black hole. The Schwartzschild radius of a black hole is proportional to its mass. We can write a handy version of this equation for stars in terms of Solar Masses as follows: R = 3M Where R is measured in kilometers and M in Solar Masses. So a 1 solar mass object (the Sun for example) if turned into a black hole would...

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