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The only known mechanism to produce a black hole is the gravitational collapse of an object that has at least 2-3 times the mass of our Sun. However, it is considered possible that the enormous densities right after the Big Bang may have resulted in some black holes; for more information, read about "primordial black holes".
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How are supermassive black holes different from stellar mass black holes?
In their mass. a "stellar black hole" has a few solar masses (a few times the mass of our Sun), while a supermassive black hole (found in the center of most galaxies) typically has a mass of millions or billions times the mass of our Sun.
What are intermediate black holes?
An intermediate-mass black hole is one with a mass significantly greater than the typical stellar-mass black holes, but less than the supermassive black holes such as are found at galactic centers. Their identification remains difficult, and their origins remain in the realm of speculation, although a reasonable theory hints at the likelihood of their formation from accretion of dense stellar clusters... and one possibly is that they are primordial black holes left over from the creation of the universe.
What were black holes before they turned into black holes?
stellar black holes were stars (these are large)primordial black holes were pieces of the big bang (these are microscopic)
What is the most common form of black holes in the universe?
Probably stellar mass black holes
How does a black holes acquire greatest mass?
Most black holes are stellar mass black holes with masses comparable to those of large stars as they form from the collapse of massive stars. Scientists know of the existence of supermassive black holes that are millions to billions of times the mass of our sun and can be found in the centers of most galaxies. Scientists still do not know how these black holes become so massive.
What is an intermediate black hole?
An intermediate-mass black hole is one that has a mass somewhere between 100 and a million solar masses, i.e., larger than the stellar black holes, but smaller than the supermassive black holes. It seems likely that such holes should exist, but the observational evidence is not yet very firm.An intermediate black hole is one whose mass is somewhere between that of a stellar black hole (a few times the mass of the Sun), and that of a supermassive, or galactic, black hole (millions or billions of times the mass of the Sun).
What is the common size of a black hole?
There is no "average" mass for black holes throughout the entire universe. Black holes range greatly in mass, depending on how they were formed, and how long they have existed if you take Hawking Radiation into account. Mass can be anywhere between a couple hundred protons, such as those created by cosmic rays striking Earth's atmosphere, or an enormous mass such as those in the center of almost every spiral galaxy.
How many different types of black holes are there?
There are four types of black holes. In size and physical construct.Size:Supermassive: These have a mass of between 105 -> 109 million Suns yet have a diameter of 0.001 -> 10 AU (an AU is approximately 150 million kilometers). It is believed that most, if not all galaxies have a supermassive black hole in their centre.Intermediate mass black hole. These have a mass of around 103 million Suns yet have a diameter of 103 kilometers (About the radius of Earth)Stellar-mass. These have a mass of about 10 million Suns but are only around 30 kilometers in diameter.Micro black hole. These have the mass of a million Moons but are tiny, up to 0.1 mm in diameter.Physical construct:Black holes with no electrical charge, and without rotationBlack holes with no electrical charge, and with rotationBlack holes with an electrical charge, and without rotationBlack holes with an electrical charge, and with rotation.See related links for more information
How does a white dwarf differ from a black hole?
A white dwarf is the last stage of stellar evolution for stars with masses similar to our Sun. A black hole, on the other hand, is the last stage of stellar evolution for stars having very large masses, many times greater than that of the Sun. Consequently, very few stars end up as black holes. Additionally, black holes have an escape velocity greater than the speed of light, while a white dwarf's escape velocity is less than the speed of light.
Where are black holes generally found in a galaxy?
Most or all galaxies appear to have supermassive black holes at their centers and probably have stellar mass black holes scattered throughout.
Are there black holes in our galaxy?
Yes. Our galaxy has a supermassive black hole at its center and likely millions of stellar mass black holes scattered throughout.
What in your solar system do scientist think could be a stellar black hole?
There is no reason to believe that there are any black holes - stellar or otherwise - within our Solar System.
