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Is a black hole a supernova remnant?
No, a black hole is not typically a supernova remnant. A black hole is formed when a massive star collapses under its own gravity, creating a region of spacetime from which nothing, not even light, can escape. On the other hand, a supernova remnant is the leftover material from a massive star's explosion in a supernova event.
Colapse of a midsized star?
When a mid-sized star collapses, it undergoes a supernova explosion, blowing off its outer layers into space. The core of the star then collapses further under its gravity, forming a dense remnant such as a neutron star or black hole. Energy released during this collapse creates a bright flash of light that can outshine an entire galaxy for a brief period.
Is the density of a pulsar greater than the density of a neutron star?
No. A black hole is in some ways just a very compact neutron star; if a normal neutron star was able to implode that far, it would have done so and become a black hole already. There is a simple law of physics called the Pauli Exclusion Principle which states that no two neutrons can occupy the same quantum state simultaneously this prevents further collapse of neutron stars.
What are the types of neutron moderators?
Neutron moderators are materials used in nuclear reactors to slow down fast neutrons, enhancing the probability of fission. Common types include water (both light and heavy), graphite, and beryllium. Each type has distinct properties that affect neutron energy and reactor efficiency. The choice of moderator is crucial for the reactor's operation and safety.
Is neutron star bigger than nebula?
No. A neutron star is quite small, generally only a few miles across. A nebula is light years across.
What is the connection between pulsars and the Crab Nebula?
Pulsars were discovered in the Crab Nebula, a supernova remnant, in 1967. The Crab Pulsar is a neutron star at the center of the nebula that emits beams of radiation, producing regular pulses of light. The high-energy particles and magnetic fields in the nebula power the pulsar's emission.
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 Remnant can stretch over a distance of several light-years?
A supernova remnant.
Is a black hole a supernova remnant?
No, a black hole is not typically a supernova remnant. A black hole is formed when a massive star collapses under its own gravity, creating a region of spacetime from which nothing, not even light, can escape. On the other hand, a supernova remnant is the leftover material from a massive star's explosion in a supernova event.
Does fire need energy?
Yes, fire does require energy to ignite and continue burning. This energy can come from sources such as heat, light, or a chemical reaction. Once the fire is burning, it releases energy in the form of heat and light through a process called combustion.
Is chemical energy created by burning fuels?
Chemical energy is not created by burning. Chemical energy is already present just converted into heat/light energy by burning.
Colapse of a midsized star?
When a mid-sized star collapses, it undergoes a supernova explosion, blowing off its outer layers into space. The core of the star then collapses further under its gravity, forming a dense remnant such as a neutron star or black hole. Energy released during this collapse creates a bright flash of light that can outshine an entire galaxy for a brief period.
Is there a neutron star have that is closer to the earth or the sun?
No. The closest neutron star is over 434 light years away.
Is the density of a pulsar greater than the density of a neutron star?
No. A black hole is in some ways just a very compact neutron star; if a normal neutron star was able to implode that far, it would have done so and become a black hole already. There is a simple law of physics called the Pauli Exclusion Principle which states that no two neutrons can occupy the same quantum state simultaneously this prevents further collapse of neutron stars.
Is a nebula larger than a neutron star?
Yes, a nebula is far larger than a neutron star. A neutron star is a few miles across. A nebula is light years across.
How big is supernova cassiopeia?
Currently the expanding cloud from the supernova remnant is about 10 light years across.
A neutron star that blinks on and off?
A neutron star that "blinks on and off" is called a pulsar. They don't really blink, but there is a jet or jets of energy that come off some of these stars. Think of a light house. You see the beam "blink" but it's just that the beam crosses your line of sight.
