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neutron stars

This is a free discussion forum on Freelancer. This is the place to discuss Freelancer issues NOT covered by the other boards!

Post Mon Apr 07, 2003 1:21 pm

neutron stars

they emit radiation that makes your hull drop to pieces. but why ?

presently, my world is upside down, so if u do not mind, u'll have to tok to my a$$

Post Mon Apr 07, 2003 1:38 pm

Because that's what neutron stars do, in addition to ripping your ship apart with their massive gravitational force.

Post Mon Apr 07, 2003 2:56 pm

theire mass isnt more then the original star, it has only been concentrad in a smaller area.
Sorry for Ant ****king.

Post Mon Apr 07, 2003 3:23 pm

Nuetron stars are supercompact stars. When a star collapse under its own gravity, typically there are two possibilities: either the star became a neutron star or a black hole, depending on the mass and the outward pressure.

A neutron star is made of solely neutron with temperature around 100k and magnetic fields in the order of several hundred trillion of earth's magnetic field. Thats why you ship blew off. In fact, the pilot should have been toasted long before the ship explode. Anyway physics are far from realistic in FL.

Post Mon Apr 07, 2003 5:42 pm

Isn't it so that collapsing stars can also become supernovas?

Post Mon Apr 07, 2003 6:11 pm

when a star goes supernova he becomes a black hole afterwards.

btw someone forgot the white drawfs as option for a dying star

Post Mon Apr 07, 2003 6:17 pm

Yup, thats right. But I figure we don't have to too detailed for this one.

If there are black holes in the game...imagine luring some enemies into the horizon.... : p

Post Mon Apr 07, 2003 6:19 pm

As far as I know a white dwarf isn't a dying star, but just a small white star. ...

A supernova turns into a black hole? Cool! I didn't know that.

Post Mon Apr 07, 2003 6:32 pm

It all depends on the final mass and the pressure of the dying star. When the mass is less then 1.4 solar masses (solar system's sun's mass), the star will become a white dwarf. I hope I remember correctly.

Post Mon Apr 07, 2003 6:36 pm

I did'n't know aout that. Always thought a white dwarf was just like green giants and stuff like that.

Post Mon Apr 07, 2003 7:11 pm

Smaller stars (such as our own) will first turn to a red giant, then to a white dwarf then to a black hole. (this taking millions if not billions of years).
Larger stars first turn to a red supergiant then they go supernova. Now depending on the mass left that collects into the centre it will either become a neutron star which has massive gravity OR a black hole which has even stronger gravity so that not even light can escape. (The light waves lose too much energy)

Hellalive rules!

Post Mon Apr 07, 2003 7:15 pm

our star the sun will never go to a black hole, it will be come a red giant first and after that a (white/braun)dwarf star, a cooling mass of Iron totaly cut from any fusion reaction.

I really should stop ant****ing

Post Mon Apr 07, 2003 7:51 pm

I am not sure about "light waves losing energy"....

IIRC, according to general relativity, the orthodox explanation is based on the spce-time curvature k. The k near the horizon is so large that photons are pulled faster into the hole then it can move away from it. Once it is within the horizon, where the escape velocity is greater then a critical value, the photons will be trapped. Time stop within the horizon because light does not flow. But this does not work for singularities.

Now, according to quantum mechnics, photon cannot lose energy because its energy: E=pc where p is the momentum and c = speed of light. But since photon is a particle, the value of its wavelength does not change. Hence its momentum will also be constant. Which in turns imply it does not lose energy.

According to classical physics however, I believe the wavelengths will change based on an infinite doppler shift. Thats how it can lose energy? I am so confused....or maybe it is the inherent incompatibility of quantum physics...

Post Mon Apr 07, 2003 11:37 pm



IIRC, according to general relativity, the orthodox explanation is based on the spce-time curvature k. The k near the horizon is so large that photons are pulled faster into the hole then it can move away from it. Once it is within the horizon, where the escape velocity is greater then a critical value, the photons will be trapped. Time stop within the horizon because light does not flow. But this does not work for singularities.



blackhole = singularity + event horizon

the singulartiy is the point in space that contains all the mass of the blackhole (infinitv dense), while the even horizon is the point of no return, after passing the even horizon nothing not even light can escape, like you said. thoug iirc the point at which times stops is not right at the event horizon ... though time should slow down already there very signifcant.

and btw time does not stop cause light does not flow, it stops cause the gravity forces are very high there. (like time is abit (a real small bit ) faster in space than on earth)

Post Tue Apr 08, 2003 12:41 am

Higher gravity = slower time = short people live longer than tall people
LOL!!!
Why is black hole such a popular subject of discussion on this fourm?

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