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Do all galaxies have black holes in the center?
Not all galaxies have black holes in their centers, but many large galaxies, including our own Milky Way, are believed to have supermassive black holes at their centers.
Do all galaxies have black holes?
Not all galaxies have black holes. While many galaxies, including our own Milky Way, have supermassive black holes at their centers, there are also galaxies that do not have black holes. The presence of a black hole in a galaxy depends on various factors such as the size and age of the galaxy.
Where do black holes go after they have consumed all nearby matter?
After consuming all nearby matter, black holes continue to exist in space but may not be actively consuming more matter.
What is the composition of black holes, and are black holes made of matter?
Black holes are made up of a super dense core called a singularity, surrounded by an event horizon. The singularity is thought to contain all the mass of the black hole, but it is not made of matter as we know it. Instead, it is a point of infinite density where the laws of physics break down.
What is the density of a black hole and how does it compare to other celestial objects?
The density of a black hole is extremely high, as all its mass is concentrated in a very small space. This makes black holes one of the densest objects in the universe. Compared to other celestial objects like stars or planets, black holes have much higher density due to their immense gravitational pull.
Which EM waves come from black holes?
From the black hole itself? Nothing. No matter or energy can escape from a black hole. From the accretion disk AROUND the black hole, where matter is accelerated to light speed at the event horizon? All possible frequencies of electromagnetic radiation can be emitted from the accretion disk, but the typical "signature" of a black hole is mostly hard X-rays.
What is accretion disc of black holes?
that`s all the matter its sucking in. and this forms a flat disc around the black hole similar to the disc around Saturn only the disc around the black hole is spiraling in on itselfs
What tools do we use to see black holes?
Black holes can't be observed directly. The Hawking Radiation is so weak, that it will perhaps never be observed.Black holes are detected indirectly, basically by their gravitational effects. This includes: * Gravitational lensing of objects behind the black hole * Observing objects that orbit the black hole * The accretion disk of a black hole can become extremely hot, making some black holes the brightest objects in the Universe! All of these are effects that happen OUTSIDE the black hole proper.
Why don't we have photographs proving the existence of black holes?
There are quite a few photographs from telescopic observations which provide evidence of the existence of black holes. The problem is that evidence is indirect, a black hole can't be directly observed since its gravity is so strong that light can't escape. Hence, photographic evidence lends support to physical theory about how it affects the matter and space around the black hole; for example, the presence and behavior of infalling matter, close orbits of massive bodies, the tearing apart of nearby companion stars, illumination from relativistic polar jets and highly energetic accretion disks, gravitational lensing, all are visible in photographs.
What kind of telescopes are used to observe black holes?
You can't really "observe" a black hole. About the best you can do is look for their effects on their immediate environment, and one of the best tools for that is an X-ray telescope... matter falling into the black hole releases a lot of energy, and some of that comes out as X-rays.
Do all galaxies have black holes in the center?
Not all galaxies have black holes in their centers, but many large galaxies, including our own Milky Way, are believed to have supermassive black holes at their centers.
Do all galaxies have black holes?
Not all galaxies have black holes. While many galaxies, including our own Milky Way, have supermassive black holes at their centers, there are also galaxies that do not have black holes. The presence of a black hole in a galaxy depends on various factors such as the size and age of the galaxy.
How fast can black holes go?
there is no exact answer, different black holes have different speeds, but all black holes can crush 1 tonne of metal into a size of a pebble
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.
What can you say about black holes?
Black holes were stars that were so massive that they collapsed on itself. The gravity in black holes is infinite and more you get closer to it, more time gets slower. Black holes suck all matter that is too close. Even light can't escape Black holes.
I want to know all about Black holes in the universe?
Black holes occur when supernovas explode, leaving their remnants of the core; a neutron star. If this is heavy enough, it will become a black hole. Nothing, not even light, can escape a Black Hole. So, obviously, we cannot see them with our own eyes or through our telescopes, but Black Holes are found by their gravitational affect on other stars around them, and tell tale signs of accretion discs (where a companion star is being pulled apart by the hole's gravity) circling around it. Steady X ray and gamma rays are produced by a black hole also.
Are black holes found IN the center of every galaxy?
Not all galaxies, but it is believed that the majority of galaxies have central black holes.
