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Because the atoms inside the neutron star are squashed together to the point that they cannot move anymore, for example a teaspoon of neutron is about 90,000,000 tonnes. So basicly pretty much anything in the universe isn't as dense as that. hope this helps.
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Is a pulsar a white dwarf?
A pulsar is a type of neutron star, a collapsed core of an extremely massive star that exploded in a supernova. Whereas white dwarfs have incredibly high densities by earthly standards, neutron stars are even denser, cramming roughly 1.3 solar masses into a city-sized sphere.
Is the troposphere denser in winter than summer?
Yes. Cold air is denser than warm air and thus the troposphere is denser in the winter than in the summer.
How hot is a pulsar?
A Pulsar is nothing more than a neutron star which points towards Earth [See related question] A newly formed neutron star would have a temperature of 1011 - 1012 Kelvin, but after a year, it will cool down to 106 (a million) Kelvin, due to the large number of neutrinos it emits.
How do stars more massive than four solar masses evolve into neutron stars?
I've seen that figure of 4 times the Sun's mass, but the usual number given is at least 8 times the Sun's mass. Anyway here's the answer: The general idea is that, depending on how much mass is left once the star runs out of fuel, it may become a white dwarf, a neutron star, or a black hole. A star like the Sun goes through a "red giant" star stage then becomes white dwarf star. Stars that are much more massive than the Sun go through a "supergiant" stage. They finally run out of fuel. The core of the star is now mainly iron. If, after running out of fuel, the amount of mass left in the core is more than a certain limit - the Chandrasekhar limit, currently believed to be about 1.39 times the mass of the Sun - the core's "electron degeneracy" pressure is not enough to resist the gravitational force on the core. In this case, the core of the star collapses into a neutron star or black hole and causes a supernova explosion.
Why are neutron stars so dense?
The black hole is infinitely more dense than a neutron star. The neutron star is something like the mass of upto 2.3 suns compressed into a ball a dozen or so kilometers in diameter. That makes the neutron star about as dense as the nucleus of an atom. Really dense stuff. Like a couple of million pounds per cubic inch, maybe. The density of the neutron star varies from "less" near the surface to many times "more" near the center. But the black hole has infinite density. That makes it infinitely more dense than a neutron star. A teaspoon of neuton star has more mass than the entire human population
Is a red giant star denser than a neutron star?
A neutron star is the densest object known to us. (Apart from a black hole). See related question.
Is the density of a neutron star about the same density as a white dwarf?
No. A neutron star is many times denser than a white dwarf.
Is a Red Giant star larger than a neutron star?
Yes far bigger. A red giant would cover the distance from the Sun to the Earth. A neutron star could be the size of New York City.
Why do you think some smaller planet are heavier than the bigger ones?
They are much denser. it's the same with stars and neutron stars. Neutron stars are many times smaller than the original star but much heavier because they are so denser
Can a pulsar be an unstable red giant?
No a pulsar cannot be an unstable red giant. It is nothing more than a neutron star [See related question]
What 2 things can happen to a star after a supernova?
It can either become a neutron star or a black hole. If the star is between 8 and 15 solar masses, it will become an incredibly dense neutron star. If it is more than 15 solar masses, it will collapse and become an even denser black hole.
What object is even denser than a neutron star?
Nothing known is denser than the densest of neutron stars except a gravitational singularity (Black hole). The upper limit of the inward pressure a neutron star can handle before further implosion is dictated by neutron degeneracy pressure. However, theoretically (Not yet observed but probably out there) the next step would be a quark star, that is, a star that is held from implosion by quark degeneracy pressure. Then the next stage would be a black hole. Technically there is yet another stage in between a qaurk star and a singularity called preon degeneracy prssure but the preon models are too flawed to even consider.
When A neutron star is the densest substance in the universe What does it tell you about its mass and volume?
It means it's mass is very high and its volume is very low. A standard neutron star has a mass thousands of times greater than the sun, but a volume of a small city. This ridiculously high density and pressure also account for the high temperatures of neutron stars. PS. Quark stars are denser than neutron.
Can a planet be denser than its star?
Yes, the Earth is much denser than our sun.
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.
Small dense star that remains after a red giant?
"Stellar masses" is not a unit of mass - perhaps you mean "solar masses". Depending on the remaining mass - after the supernova explosion - either a neutron star or a black hole. In the case of four stellar masses, probably a neutron star; it would require a more massive star than that to become a black hole.
Can a neutron star become a nebula?
No, a neutron star can't become a nebula. A neutron star is not made of atomic matter, has less mass than a nebula, and has no mechanism by which to expand.
