Magnetar????????????

Question

I keep hearing about magnetars but I don't know what they are!

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Answer 1

A Magnetar is a special type of neutron star that came from a supernova of a star that wasn’t large enough to form a black hole. Then a plasma field is formed around the star, as gravitational collapse starts to tighten things up. When that star has these conditions and the right content of good electrical and magnetic conductor metals inside it you can get a magnetar.

When a star like our sun, Sol dies it expands into a red giant and collapses into a brown dwarf. When a larger star dies it expands into a red giant and collapses into a neutron star. The greater matter causes the star to collapse into itself forming a very dense material. When a star that is larger than this collapses it expands into a red giant that quickly turns into a nova, the star explodes. The star then collapses, falling past the point of a neutron star and becomes a black hole. A Magnetar needs a neutron star with the right mix of elements inside it.

Supernovas are a whole different kettle of star stuff.
According to Wikipedia: http://en.wikipedia.org/wiki/Supernova
“A supernova (pl. supernovae) is a stellar explosion which produces an extremely bright object made of plasma that declines to invisibility over weeks or months. A supernova releases more than about 1017 (100 quadrillion) times the Sun's energy output, briefly outshining its entire host galaxy.[1] There are several different types of supernovae and two possible routes to their formation. A massive star may cease to generate fusion energy from fusing the nuclei of atoms in its core, and collapse under the force of its own gravity to form a neutron star or black hole. Alternatively, a white dwarf star may accumulate material from a companion star until it nears its Chandrasekhar limit and undergoes runaway nuclear fusion in its interior, completely disrupting it. Note that this second type of supernova should not be confused with a surface thermonuclear explosion on a white dwarf, which is called a nova. In either type of supernova, the resulting explosion expels much or all of the stellar material with great force.“

Neutronium is an incredibly dense material. Objects are mostly empty space with a slight mix of atoms inside. Normally atoms are distributed like 2 dozen soccer balls randomly scattered across a soccer field. Neutronium would then be like 8 dozen soccer balls (or more) all shoved into the net on one side; a really dense material. Stars start burning (actually fusing) hydrogen first, when they run out of that they move on up the Periodic Table of Elements (Wikipedia: http://en.wikipedia.org/wiki/Periodic_Table). The star works its way up to element 26 Fe = Iron. Stars aren’t powerful enough to fuse Iron, so when a star reaches that point it either collapses or it explodes. If it explodes then gravity will pull all that star stuff back in forming a brown dwarf star (for a small-medium sun), a neutron star (for a medium-large star), or a black hole (for the really big stars).

If a star collapses into a black hole then all the material of the star is gone, lost in the gravity hole and condensed down to one point. The main effect coming from that star is only gravity. If the star was smaller and able to collapse into a neutron star then you could get a Magnetar. Remember that any elements up to Iron are gone, all burned up. As you know Iron is an excellent material to create a magnetic field in. If the collapse happened in a certain way then a plasma filed is built up. Plasma is the 4th state of matter, hotter than gas. This is a lot of energy and that energy is expressed by electrons moving super fast around the quickly moving atoms in the plasma. No single atom is sticking with another they are moving around too fast for that.

Take an Iron core, with some heavier elements (like the rare earth elements that are used to make magnets) include a few other elements that make excellent conductors like copper, silver, gold, and platinum. Then spin a strong electrical field around it. The result is a really huge super-magnetic, or a star sized magnet or a MAGNETAR.

Answer 2

A magnetar is a neutron star with an extremely powerful magnetic field, the decay of which powers the emission of copious amounts of high-energy electromagnetic radiation, particularly X-rays and gamma-rays. The theory regarding these objects was formulated by Robert Duncan and Christopher Thompson in 1992. In the course of the decade that followed, the magnetar hypothesis has become widely accepted as a likely physical explanation for observable objects known as soft gamma repeaters and anomalous X-ray pulsars.

Answer 3

A magnetar is a neutron star with an extremely powerful magnetic field, the decay of which powers the emission of copious amounts of high-energy electromagnetic radiation, particularly X-rays and gamma-rays. The theory regarding these objects was formulated by Robert Duncan and Christopher Thompson in 1992. In the course of the decade that followed, the magnetar hypothesis has become widely accepted as a likely physical explanation for observable objects known as soft gamma repeaters and anomalous X-ray pulsars.

Answer 4

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