Where do the electrons go? (in stellar nuclear fusion)

Click For Summary
SUMMARY

This discussion centers on the behavior of electrons during stellar nuclear fusion and their role in cosmic ray production. It is established that electrons remain within the Sun's core during the fusion process and do not escape like neutrons and protons. Instead, they contribute to the neutral plasma that forms when matter leaves the Sun's surface. Key concepts such as ambipolar diffusion are crucial for understanding the dynamics of charged particles in stellar environments.

PREREQUISITES
  • Understanding of nuclear fusion processes in stars
  • Familiarity with plasma physics
  • Knowledge of cosmic rays and their sources
  • Concept of ambipolar diffusion in plasma
NEXT STEPS
  • Research the mechanisms of nuclear fusion in stars
  • Study the properties and behavior of plasma in astrophysical contexts
  • Investigate the origins and characteristics of cosmic rays
  • Explore ambipolar diffusion and its implications in stellar physics
USEFUL FOR

Astrophysicists, educators in natural radiation, students studying stellar dynamics, and anyone interested in the processes governing cosmic ray production.

Thies_Kohl
Messages
2
Reaction score
0
TL;DR
I have got a question about the function of stars and how nuclear fusion and the release of cosmic rays work in particular.
I have to give a presentation about natural Radiation and I am very happy about it because it includes Astrophysics. I want to explain to my audience how the stars produce cosmic rays. I thought about explaining to them how nuclear fusion and that kind of stuff works but then I realized that I have got a big gap in knowledge. I didn't know what happens to the electrons inside the star because they aren't released like the neutrons and protons. Where do they go? Do they stay inside the star until it explodes`? Are they send out but they just don't reach Earth and other planets? What happens with the electrons? I hope that anyone of you can explain to me how that works.
Sincerely Thies Kohl
 
Last edited by a moderator:
Astronomy news on Phys.org
Charged particles move fast, but because of electro-magetism, they just stay around. The sun is a big ball of plasma.
 
Thies_Kohl said:
Summary:: I have got a question about the function of stars and how nuclear fusion and the release of cosmic rays work in particular.

I have to give a presentation about natural Radiation and I am very happy about it because it includes Astrophysics. I want to explain to my audience how the stars produce cosmic rays. I thought about explaining to them how nuclear fusion and that kind of stuff works but then I realized that I have got a big gap in knowledge. I didn't know what happens to the electrons inside the star because they aren't released like the neutrons and protons. Where do they go? Do they stay inside the star until it explodes`? Are they send out but they just don't reach Earth and other planets? What happens with the electrons? I hope that anyone of you can explain to me how that works.
Sincerely Thies Kohl
Everything fusion-wise stays inside the 'baking pot' of the Sun's core.

What you see on the surface is 'hot stuff' that is at ~6000K or so, and is hot because it is the result of the exothermic fusion process products working their way to the surface, by which time they have thermalised with the solar plasma.

You do not see 'energetic fusion products' at the surface, just hydrogen and the 'fusion products' that have cooled and worked their way to the surface. The Sun is a big lump of plasma with ions and electrons fully dissociated.

If matter leaves the surface of the Sun, it will leave it in a neutral form, either as neutral particles or as a neutral plasma (equal mix of electrons and ions).

This is because of the electric field between them which keeps them held together.

I recommend you look up 'ambipolar diffusion' as your starter on this.
 

Similar threads

Replies
2
Views
2K
  • · Replies 6 ·
Replies
6
Views
4K
  • · Replies 3 ·
Replies
3
Views
3K
  • · Replies 1 ·
Replies
1
Views
3K
  • · Replies 2 ·
Replies
2
Views
3K
  • · Replies 21 ·
Replies
21
Views
3K
  • · Replies 49 ·
2
Replies
49
Views
5K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 0 ·
Replies
0
Views
3K
Replies
0
Views
1K