No, they do not.
The extreme gravitational field of the neutron star...an object with typically 4 to 8 times the mass of our sun, packed into a diameter of about eight miles...pulls mass off of any close companion star, which spirals into the neutron star. If the companion star is close enough, it may over time totally disintegrate and be consumed by the neutron star, which itself may become massive enough to finally become a stellar "black hole", an object whose surface escape velocity would be greater than the speed of light, so that nothing, not even light, can escape beyond its "event horizon".
Good sentence for neutron star - WOW ! see that;s a neutron star !!
Neutron stars do not have fuel. A neutron star is a remnant of a star that has already died.
It is still called a neutron star. Depending on how we observe it, it may also be called a pulsar.
If the mass of the dead star is high enough, gravity will overcome electron degeneracy pressure holding the dead star up. Electrons will fall from their ground state into the nuclei, turning protons into neutrons and all the nuclei will merge forming a neutron star held up by neutron degeneracy pressure. If it stops here, the infalling outer layers that have not yet become neutrons crash into the super hard surface of the neutron star initiating a shockwave that propagates outward. This outgoing shockwave creates the supernova.If the mass of the neutron star is high enough, gravity will overcome neutron degeneracy pressure holding the neutron star up. A black hole will form. However all of the neutron star can't fall into the black hole instantly. A shockwave forms just outside the event horizon that propagates outward. This outgoing shockwave creates the supernova.
No. Only black holes have event horizons.
A black hole has an event horizon, beyond which nothing can escape, including light. Neutron stars also have an event horizon, called the "surface" or "crust," which marks the boundary within which matter is crushed by extreme gravity. White dwarfs, being less massive, do not have an event horizon.
A black hole has more mass than a neutron star, but if you are comparing volume it would depend on the mass of the black hole. A neutron star is estimated to be about 14 miles in diameter, which is larger than the event horizon of a black hole up to about 3.8 times the mass of the sun. A more massive black hole will be larger.
If you mean a giant star, no.
No. An event horizon is an area where even light cant escape so only black holes have it
That refers to a black hole - but a black hole is not exactly a star.
The event horizon is not related to density comparison with the atomic nucleus. It is the point around a black hole where the escape velocity is equal to the speed of light, and nothing, not even light, can escape. The density of a black hole is concentrated in its singularity at the center, not at the event horizon.
It would all depend on how close the neutron star was. If it was outside the event horizon, then if would be observed to be orbiting "nothing". If it strayed too close to the black hole, then it would be slowly ripped apart, until a slightly larger black hole was all that is left.
It all relates to what you define as big. A black hole is an infinite region in space with an infinite density. It's "event horizon" is not infinite. If you wish to categorise between size of a neutron star and a black hole's "event horizon", then a black hole is, in most cases larger - but there are micro black holes, which exhibit all the characteristics of a black hole but have a much smaller "event horizon". In the physical sense, everything is bigger than a black hole, but in a terminological sense (the event horizon) it would depend on the mass of the black hole.
A black hole is a single point where all matter from an extremely massive neutron star has condensed to a point of infinite density, called a singularity. The immense gravitational pull of a black hole is so strong that not even light can escape its event horizon, the point of no return.
The extreme gravitational field of the neutron star...an object with typically 4 to 8 times the mass of our sun, packed into a diameter of about eight miles...pulls mass off of any close companion star, which spirals into the neutron star. If the companion star is close enough, it may over time totally disintegrate and be consumed by the neutron star, which itself may become massive enough to finally become a stellar "black hole", an object whose surface escape velocity would be greater than the speed of light, so that nothing, not even light, can escape beyond its "event horizon".
Good sentence for neutron star - WOW ! see that;s a neutron star !!