Do Stars Have Van Allen Radiation?

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Discussion Overview

The discussion revolves around the question of whether stars possess Van Allen radiation, with a focus on the nature of stellar magnetic fields and their potential to trap charged particles, similar to Earth's Van Allen belts.

Discussion Character

  • Exploratory, Conceptual clarification, Debate/contested

Main Points Raised

  • One participant questions if stars have Van Allen radiation, initiating the discussion.
  • Another participant suggests that the solar wind from the sun contributes to charged particles that are trapped in Earth's magnetic field, implying a connection to the concept of Van Allen radiation.
  • A participant proposes that if a star has a magnetic field similar to Earth's, it could potentially trap particles like the Van Allen belts do, but expresses uncertainty about whether stars possess such magnetic fields.
  • Another participant reiterates the need to demonstrate that a star has a magnetic field like Earth's to make claims about particle trapping, while also acknowledging that stars may have magnetic fields that differ from Earth's in various ways.

Areas of Agreement / Disagreement

Participants do not reach a consensus on whether stars have Van Allen radiation or the nature of their magnetic fields, indicating multiple competing views and unresolved questions.

Contextual Notes

There are limitations regarding the definitions of magnetic fields and Van Allen radiation, as well as the assumptions about the nature of stellar magnetic fields compared to Earth's.

shounakbhatta
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Hello,

I have a question: Do stars have Van Allen Radiation?

Thanks
 
Astronomy news on Phys.org
The solar wind emitted by the sun is thought to be the source of the charged particles which become trapped in Earth's magnetic field.

Due to the dynamic nature of the sun, there are all sorts of particles and ionized matter being thrown off the surface of the sun.

http://en.wikipedia.org/wiki/Van_Allen_radiation_belt
 
If you could show that a star has a magnetic field surrounding it like the earth’s, then you could say that it would trap particles the same way the Van Allen belt does. As far as I know, stars do not have such a magnetic field.
 
Bobbywhy said:
If you could show that a star has a magnetic field surrounding it like the earth’s.

http://www.stewwebb.com/2013/08/06/the-suns-magnetic-field-is-about-to-flip/

Actually it flipped already about two weeks ago.

I don't mean to say that is has a Van Allen belt.
But stars may have magnetic fields. Of course, they may not be "like the eart's" in some respects.
 

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