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How can astronomers tell whether a black hole exists in the center of a galaxy?
Wiki User
∙ 13y ago
Astronomers believe there may be a black hole at the center of our galaxy because of a compelling body of evidence supporting the idea. Recent observations of the behavior of stars at the center of our Milky Way show them orbiting an object which, based on the stars' velocities, indicates its gravitation pull on them is caused by an object something that weighs in the vicinity of four million solar masses. The point of the nearest approach (perigee) in the orbit of the closest of these stars misses it at a distance which sets the upper limit of the size of the object. Given that nothing else in our physical theory could be so small yet so massive, the best fit is a supermassive black hole.
Wiki User
∙ 8y ago
Wiki User
∙ 13y agoHawking Radiation would be one of the newer ways to detect black holes. Other than this, the only other way to detect a black hole is from the effect on its surroundings.
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What do astronomers think is located in the core of the Milky Way Galaxy?
One theory suggests that a black hole (a collapsed star with immense density) is located in the center of the galaxy. Another theory suggests that there's a wormhole leading to a whole other universe or dimension.
What is the distant galaxy with a black hole in its center?
Timing is everything as astronomers are making discovers all the time. As of an article posted in March of 2012 - Galaxy J1120+0641, containing the most distant supermassive black hole known to science, is so far away that light from it takes over 13 billion years to reach our planet. This means the light astronomers see from this galaxy is just 740 million years after the Big Bang.
Where is the Gallium Galaxy?
If it exists it is not known by most observers.
What led astronomers to believe that this galaxy contained a black hole?
Our galaxy does not contain "a" black hole, it contains thousands, perhaps millions, of them.Astronomers believe there is a supermassive black hole near the center of the galaxy, with a mass of about 4 million solar masses. They reached this conclusion, among other things, by observing objects moving around it. This makes it possible to make an estimate of the mass. Some of the objects are quite near the ... object, whatever it is, and astronomers know of nothing except a black hole that can have such a large mass in such a small space.
Does the supermassive blackhole at the center of your galaxy contain most of the mass of the galaxy?
No. The super massive black hole at the center of the galaxy has about 4 million times the mass of the sun while the galaxy as a whole has at leas 1 trillion solar masses. In other words the black hole at the center of the galaxy accounts for about one twenty-fifth of one percent of the galaxy's mass.
Why galaxy exists?
Galaxy exists because stars and nebulae exists.
What do astronomers called your galaxy?
The Milky Way Galaxy.
How can astronomers redshift a background galaxy that is masked out due to being close to the bright foreground galaxy?
Wavelengths is what allows astronomers redshift a background galaxy that is covered up. This is due to being close to the foreground galaxy.
In what part is a black hole in the universe?
Astronomers believe that black holes exist in the center of every universe. They even think that there may be a black hole in the center of our galaxy, the Milky Way
What is the galaxy in which your solar system exists?
our solar system exists in barred spiral galaxy
How do astronomer study the center of milky way galaxy?
They use powerful devices such as the Hubble Space Telescope, and infrared and ultraviolet waves. Astronomers also use the direction of the path of light, gamma rays, and beta particles to study the center of our spiral-shaped Milky Way Galaxy.
Suppose astronomers discover a galaxy that contains only old stars.What type of galaxy is it likely to be?
An elliptical galaxy
What do astronomers think is located in the core of the Milky Way Galaxy?
One theory suggests that a black hole (a collapsed star with immense density) is located in the center of the galaxy. Another theory suggests that there's a wormhole leading to a whole other universe or dimension.
Do most astronomers believe that earth is in a barreled spiral galaxy?
duh were living in a barred galaxy
Quasar in a sentence?
Astronomers have detected a quasar in a distant galaxy.
What evidence now exists for a super massive black hole at the center of your galaxy?
very rapid motion of matter close to the nucleus of the galaxy, requiring a very massive body to hold it in orbit
Who visited the galaxy or did anyone studied about the galaxy?
It's not possible that we could cross a galaxy. But astronomers study galaxies with huge telescopes.
