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Neutron Stars

Neutron Stars. Where Do Neutron Stars Come From?.

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Neutron Stars

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  1. Neutron Stars

  2. Where Do Neutron Stars Come From? • When a massive star below 20 times the size of the sun fuses all of its Hydrogen fuel, it becomes Helium. Helium is then fused denser, this continues until the core becomes Iron, at which point there can be no more fusion, and the star collapses from it’s own immense gravity.

  3. How Are They Formed? • The Core of a massive star collapses under the huge gravitational force of it’s mass, and the core compresses into a Neutron Star. The Star is made up of mostly Neutrons; subatomic particles with no electromagnetic charge. • Most stars that collapse will become Pulsar Neutron Stars, however stars that have a mass 10-30 times that of the Sun may lose most of it’s mass before death and instead of becoming a black hole it will become a Magnetar.

  4. A Supernova

  5. Neutron Star Properties • After the star has exploded as a supernova, the Neutron Star is still moving angularly at the same speed, however which the much smaller radius it revolves and rotates much faster. • The Gravitational force of a Neutron Star is 200 Billion times stronger than that of earth. • As the rotation of a Neutron Star slows the shape becomes more spherical, and the stiff crust ruptures and quakes. • Neutron Stars occasionally undergo speed ups in rotation, which is caused by the magnetosphere around it to rotate together with the plasma from the star.

  6. Pulsars • A Pulsar is a Neutron Star which emits electromagnetic radiation along the poles. • The beams revolution is one of the most accurate clocks. • After 40 years of research there is still minimal info on how the beam is made. • The leading theory of the beams creation is the fast rotation of the Pulsar causes the strong magnetic field to quickly move, which accelerates Electrons and Protons on the surface outwards.

  7. A Pulsar

  8. Magnetars • Another type of Neutron Star is a Magnetar, a Neutron Star with enormous magnetic strength, rotating very fast. • A Magnetar is formed when the core of a Supergiant Star collapses into a Neutron Star, retaining all of the parent star’s magnetic strength, and because of a large amount of mass will undergo a huge increase in magnetic strength based on rotating, convecting, and electric conduction. (Dynamo Theory) • When the Magnetar’s magnetic field decays, it powers bursts of Gamma and X-rays.

  9. A Magnetar

  10. How do Neutron stars die? • Overtime, matter in space will be accreted onto the Neutron Star. When the mass builds up until it is 2-3 times the mass of the sun, it will collapse into a black hole. • Other theories are the neutrons will decay into Quarks, and become Quark Stars, the Quarks could further decay into Preons, becoming Preon Stars.

  11. Actual Neutron Stars Magnetar SGR 1900+14 Vela Pulsar First Observed Neutron Star: RX J185635-3754

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