- #1
acidmatic
- 7
- 0
I have never met such an idea... Can anyone comment?
Jonathan Scott said:It is possible that a black hole could act as a seed for such formation. However, in that case the black hole itself must have already formed from something, so that creates a "chicken and egg" problem.
I don't think this is known at present.Arman777 said:ıs this means we need a that we need such a galatic structure to create a massive black hole ? ,Or just an alone massive star could create a black hole ?
Jonathan Scott said:My feeling is that a black hole which is large enough to trigger galaxy formation would need a concentration of mass many times that of a single star,
Jonathan Scott said:The main alternative is that somehow supermassive black holes were able to form by collapse directly from intergalactic gas in the early universe.
Orodruin said:I am sceptical, the supermassive black hole at the center of the Milky Way is very light in comparison to the galaxy's total mass. The seeds for galaxy formation are usually believed to be the gravitational wells created by density variations of dark matter.
No one has ever witnessed a real black hole as I understand. Correct? Of course, all the evidences indicate such an object does exist. But what if it is just the gravity of all stars that center of a galaxy (quasar) consists of creates these spirals of matter?Arman777 said:So dark matter creates a galaxy structure,And that structure creates a black hole ?
acidmatic said:No one has ever witnessed a real black hole as I understand. Correct?
acidmatic said:what if it is just the gravity of all stars that center of a galaxy (quasar) consists of creates these spirals of matter?
A black hole is a region in space where the gravitational pull is so strong that nothing, including light, can escape from it. It is formed when a massive star dies and collapses in on itself, creating a singularity.
Black holes are surrounded by a disk of gas and dust called an accretion disk. As matter falls into the black hole, it heats up and emits radiation. This radiation can push gas and dust away from the black hole, creating powerful jets that can trigger the formation of stars and galaxies.
The strong gravitational force of a black hole can pull in surrounding matter, causing it to spin faster and form a disk. This disk can then collapse under its own gravity to form a galaxy. Additionally, the jets created by the black hole can trigger the formation of stars and galaxies in the surrounding gas and dust.
While black holes can grow in size by consuming matter, they do not consume entire galaxies. The gravitational pull of a galaxy is strong enough to keep the stars and gas in orbit, preventing them from falling into the black hole.
Scientists use various methods to study the effects of black holes on galaxy formation, such as observing the jets and radiation emitted by black holes, studying the motion of stars and gas near black holes, and using computer simulations to model the formation of galaxies in the presence of black holes.