Neutron stars are formed when stars with more than 8 times the mass of the Sun run out of fuel and explodes as a supernova. After the star explodes, the core of the star remains, the core would then become a neutron star or a black hole. If the core remain is less than 3 times the mass of the sun, it would become a neutron star.
pulsars
Yes, both black holes and neutron stars are remnants of the death of massive stars. Neutron stars form when the core of a massive star collapses but does not produce a black hole. Black holes are formed when the core of a massive star collapses beyond the neutron star stage.
Because when they are newly formed, they are very hot.
These stars are formed preponderant by neutrons.
Neutron stars. A neutron star pulses, however if that pulse is detected on Earth it is called a pulsar, even though they are the same thing. See related questions.
A Pulsar. See related question
No, black holes cannot turn into neutron stars. Neutron stars form from the remnants of supernova explosions of massive stars, while black holes are formed from the gravitational collapse of massive stars. Once a black hole is formed, it will remain a black hole and will not transform into a neutron star.
The small dense remains of a high-mass star are called neutron stars or black holes, depending on the mass of the star. Neutron stars are formed when the core collapses under its own gravity, while black holes are formed when the core collapses into a singularity.
The first neutron stars likely formed some time in the first 600 million years after the Big Bang when large stars of the first or second generation died.
When a star dies, it can leave behind different types of stellar remnants depending on its mass. Some examples include white dwarfs, neutron stars, and black holes. White dwarfs are formed from the remnants of low to medium mass stars, neutron stars are formed from the remnants of massive stars, and black holes are formed from the remnants of the most massive stars.
Neutron stars are made almost entirely of neutrons. These neutrons are formed when the star implodes, causing the orbiting electrons of the atoms to interact with the protons in the nucleus. So, it is safe to say that neutron stars contain no electron.
The densest stars are neutron stars, which are formed from the collapsed core of a massive star after a supernova explosion. Neutron stars are incredibly dense, with a mass greater than that of the Sun but compressed into a sphere only about 10 kilometers in diameter. The density of neutron stars is so high that a sugar-cube-sized amount of neutron star material would weigh as much as Mount Everest.