Neutron Stars

A white dwarf is much larger than a neutron star.

A rotating neutron star may emit continuous beams of electromagnetic radiation from its poles. Due to its rotation, and the fact that the magnetic poles do not necessarily align with the axis of rotation, such a beam may periodically be directed towards our solar system. We observe the beam as it flashes past us, noting a pulse.

It may also be possible for a neutron star in a binary system to periodically accrete enough matter on its surface from its companion for it to undergo fusion, producing omnidirectional X-ray flashes.

Think of a black hole like the neutron star's big brother. When a star reaches the end of its life, it blows off its outer layer in a supernova and leaves behind a stellar remnant. The mass of the star, during its life, determines what is left behind by its death. For relatively low mass stars (such as our own star), the remnant is a white dwarf. Get much larger than about 1.4 times our own star's mass and you end up with a neutron star. The exact upper mass limit for neutron star formation isn't known for certain, but the estimate is something between 2 and 3 times our own star's mass. Above that, and the remnant core collapses into a black hole.

It is extremely unlikely that a neutron star (or any star or planet) will collide with the Earth, so this is not something that you need to worry about, however, if a neutron star were to collide with the Earth, the Earth would be captured by the intense gravitational field of the neutron star, and would be absorbed by the star. Under sufficient pressure, electrons and protons will merge to form neutrons, and so the atomic matter of which the Earth is composed can be converted into pure neutrons.

A pulsar

The fusion that starts off with Hydrogen atoms being pressed together by gravitational forces that are strong enough to resist the outward pressures of the reaction itself pushes the matter to excited states. When an electron jumps to this excited state it releases a photon in the visible spectrum. Other types of radiation are also produced. An electron can be described as both a particle and a wave. Similarly, a photon can be described as a particle and a wave. The electron is wiggling around the nucleus of the atom at a certain frequency close to the speed of light in near empty space. Everything you think you see is 99% empty space with electrons vibrating at the right frequency to reflect photons in a particular spectrum visible to your sense of sight. In addition, many other wavelengths of radiation are emmitted from stars. What is actually happening in any type of reaction that releases energy is energy moving from its organized state, matter, to a state of total chaos adding chaos to our expanding chaotic universe. Your senses can only perceive a minute spectrum of the energies actually emmitted by any reaction. If you were able to sense all energies you would be "blinded by the light". Everything you think you see is 99% empty space, and most of what is really there is not visible to you using your limited senses. Also, everything is energy either structured into matter or chaotic. So what actually causes you to think that a photon was produced? A wavelength hit your disfunctional wavesensor and it sent a chemical and electric message to your brain which told you so? Tracker 13

It's hard to know ahead of time for certain what remnant a massive star will leave at the end of its life, since it might shed a large fraction of its gaseous envelope; but mass is a fairly good guide. A remnant under about 1.4 solar masses would likely leave a white dwarf, heavier than that it might create a neutron star, up to somewhere around three to five solar masses, beyond that, it might collapse to a black hole. Some studies indicate that before the star dies, it might need to start out with at least eight to ten solar masses to possibly end up as a black hole.

Kinda-sorta, but it would be more of crash. Neutron stars have very high gravity, so you'd come plungning down and then turn into a smear on the surface.

neutron star

A neutron star emits most of its energy at higher frequencies.

Neutron degeneracy pressure, in which the neutrons themselves prevents further collapse.

pulsar

No. The most massive stars will leave behind a black hole.

They are all astronomical terms for stars or star related.

The stars solar mass, or relative size to the sun. If its gravity is big enough, when it does condense in on itself, it will create a black hole. If not, it will form a highly dense clump of matter, or a Neutron Star If the stars mass is more than 3 solar masses, it will form a black hole. If it is less, it will form a neutron star

Not exactly, while a pulsar is a specific type of neutron star (that being a "spinning neutron star") and a binary system is a pair of stars orbiting each other, a pulsar does not need to be part of a binary system. It would be possible, however to have a binary system with one of the pair being a pulsar and the other a neutron star (assumed to be the non-spinning or "normal neutron star" variety).

They both explode and some parts turn to meteors and some land on Earth.

Though through out the whole thing people think super novas are alien spaceships from another galaxy. Astronomers study these novas and tell us the truth!

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.

Has it's magnetic axis directed towards Earth

The nearest neutron star to us is called an unremarkable PSR J0108-1431. It is located about 424 light years from us in the constellation Cetus.

The Radius of the Star is 10 KM. Now we need to find the diameter. Circumference equals pi times the Diameter. That is twice the Radius, which is 20. Now we need to get the Diameter. We multiply the diameter by pi. 20 times 3.1416. 20 * 3.1416 = 62.838. Now we multiply the circumference in kilometers by the speed. 62.832 * 642 = 40,338. Now we take the speed of light, 299,997 per second and divide it into the speed of a point on the equator of our star going 40,338 kilometers per second. 40338 / 299997 = 0.1345

The neutron star so affected wouldn't really notice. The mass of the neutron star is huge compared to that of the material in the accretion disk. And that matter, when it falls in, wouldn't really "slow" the spin of the star much unless there was a gigantic quantity of matter falling in and/or it acted over a very long period.

When a medium-size star runs out of fuel (hydrogen to fuse into helium), it will collapse on itself. It has a large enough mass that it can push past the resistance from electron degeneracy pressure. When it collapses more, it will get stopped by neutron degeneracy pressure. It will settle at a star that is about 20 kilometers in diameter. The star fuses protons with electrons, and these form neutrons to make a kind of "neutron soup".

A normal (but fairly massive) star.

A normal (but fairly massive) star.

A normal (but fairly massive) star.

A normal (but fairly massive) star.

In all probability - not that this scenario would happen - but the resulting combination of masses, would push the combined "stars" over the Chandrasekhar limit and a black hole would form.