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submitted 11 months ago by throws_lemy@lemmy.nz to c/space@beehaw.org
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[-] Paragone@beehaw.org 3 points 11 months ago

2 comments:

  • they said that it shows the emission of electromagnetic energy has the same cause, but didn't explain what that cause is...

  • they said that magnetars don't emit energy all the time, so we had to catch them when they did emit: that is false: we have to catch them when they're emitting at us, which is a very-different frame-of-reference.

Also, if the things are neutron-stars, then how the hell can they even have any electromagnetic field?

Neutrons are neutral.

It must be a crust of non-neutron protons & electrons, or the plasma swirling in, or something, that's producing the electromagnetic field...

No need to bother commenting on anything I say:

just random thoughs flitting through a deteriorating old brain...

[-] gromnar@beehaw.org 1 points 11 months ago

Your last one is a good question. I don't have an answer but I was leaning towards some sort of conservation law (e.g. normal stars have magnetic fields, when they get squeezed down to a neutron star those fields must go somewhere and it will be very much "concentrated"). Apparently this is a bit too easy (didn't expect to be nothing different). Wikipedia provides a reference to a not too recent (2003) survey, namely this one: https://arxiv.org/abs/astro-ph/0307133 . I don't know if it's the state of the art but it surely is interesting.

this post was submitted on 26 Nov 2023
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