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Why prevents stars collapsing under the force of their own gravity?
The pressure of the fusing gasses
What works with pressure to keep a nebula from collapsing?
The pressure caused by the thermal energy of the gas within the nebula pushes outward in all directions, preventing the nebula from collapsing under its own gravity. This pressure acts to counterbalance the force of gravity, maintaining the nebula's size and structure.
What happens when the gravity of a massive star overcomes neutron degeneracy pressure?
When the gravity of a massive star overcomes neutron degeneracy pressure, the core collapses under its own gravity, leading to the formation of a black hole or a neutron star, depending on the initial mass of the star. This process releases a tremendous amount of energy in the form of a supernova explosion.
What force would prevent the main sequence collapsing?
The primary force that prevents a main sequence star from collapsing under its own gravity is the pressure generated by nuclear fusion in its core. As hydrogen atoms fuse into helium, this fusion process releases an immense amount of energy, creating an outward pressure that counteracts the inward pull of gravity. This balance between gravitational force and the energy produced by fusion is known as hydrostatic equilibrium, allowing the star to maintain its stability throughout the main sequence phase of its lifecycle.
What two forces stabilize a nebula?
Gravitational force pulls gas and dust particles together to form a nebula, while the outward pressure from gas particles pushing against each other (thermal pressure) prevents the nebula from collapsing under gravity. These two forces work together to stabilize a nebula.
Why prevents stars collapsing under the force of their own gravity?
The pressure of the fusing gasses
How are black hole different from neutron star?
A neutron star is an extremely dense object in which atoms have been crushed by gravity, causing electrons and protons to merge into neutrons. A force known as neutron degeneracy pressure prevents it from collapsing further. The neutron star can emit light and other forms of radiation. A black hole is an object that has completely collapsed under the force of gravity, with all mass coming to a single point called a singularity. The gravity is so strong that, within a certain radius nothing, not even light, can escape.
What prevents galaxies from collapsing under their own weight?
Their rotation.
How is the neutron star different from a black hole?
A neutron star is the remnant of a massive star. It consists of an extremely dense collection of neutrons that is prevented from collapsing further by neutron degeneracy pressure. While they have extremely strong gravity, neutron stars still emit light. A black hole is an object that has completely collapsed under the force of gravity, forming an infinitely dense singularity. Within certain radius, nothing, not even light escapes.
What works with pressure to keep a nebula from collapsing?
The pressure caused by the thermal energy of the gas within the nebula pushes outward in all directions, preventing the nebula from collapsing under its own gravity. This pressure acts to counterbalance the force of gravity, maintaining the nebula's size and structure.
What does the equilibruim between the outward pressures of radiaion and the force of gravity do?
While the star can produce energy, that keeps the star in balance - it keeps the star from collapsing. By the way, another outward force is the gas pressure, but that, by itself, is not enough to counteract the force of gravity in the case of a star.
What does the euilibrium between the outward pressures of radiation and the force of gravity do?
The equilibrium between the outward pressures of radiation and the force of gravity in a star helps to maintain its stable size and temperature. This balance prevents the star from collapsing under its own gravity or expanding uncontrollably due to radiation pressure.
A what is formed by a star that collapses under gravity to the point that its electrons and protrons form neutrons?
A neutron star is formed when a star collapses under gravity to the point where its electrons and protons combine to form neutrons. Neutron stars are extremely dense and have strong gravitational forces.
What is formed by a star that collapses under gravity to the point that its electrons and protons form neutrons?
A neutron star.neutron star
What happens when the gravity of a massive star overcomes neutron degeneracy pressure?
When the gravity of a massive star overcomes neutron degeneracy pressure, the core collapses under its own gravity, leading to the formation of a black hole or a neutron star, depending on the initial mass of the star. This process releases a tremendous amount of energy in the form of a supernova explosion.
How are stars shaped?
A star is a massive, luminous ball of plasma held together by gravity. A star begins as a collapsing cloud of material composed primarily of hydrogen, along with helium and trace amounts of heavier elements. Once the stellar core is sufficiently dense, some of the hydrogen is steadily converted into helium through the process of nuclear fusion. The remainder of the star's interior carries energy away from the core through a combination of radiative and convective processes. The star's internal pressure prevents it from collapsing further under its own gravity.
What force would prevent the main sequence collapsing?
The primary force that prevents a main sequence star from collapsing under its own gravity is the pressure generated by nuclear fusion in its core. As hydrogen atoms fuse into helium, this fusion process releases an immense amount of energy, creating an outward pressure that counteracts the inward pull of gravity. This balance between gravitational force and the energy produced by fusion is known as hydrostatic equilibrium, allowing the star to maintain its stability throughout the main sequence phase of its lifecycle.
