Astronomy

Is the magnetic field strength of a star predictable from mass, composition, age and angular momentum alone?

Is the magnetic field strength of a star predictable from mass, composition, age and angular momentum alone?


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This answer to Which stellar properties can we describe as “first principles” in which we can derive the rest? contains an intriguing bit:

That states that composition and mass are the two key properties, assuming that the star is in hydrostatic equilibrium and derives its energy from nuclear reactions.

I agree with Rob that rotation (angular momentum) is a key second-order effect, and I'd add magnetic field strength as well.

which triggered an intriguing comment:

Is the magnetic field strength generally independent of the other three properties?

Question: Is the magnetic field strength of a star predictable from mass, composition, age and angular momentum? Or is it somewhat random or at least unpredictable from those alone for some reason?

I suppose it could be somehow inherited, influenced or acquired from its surroundings during formation, or arise from some random or chaotic process, but I have no idea.


Watch the video: Magnetism. #aumsum #kids #science #education #children (June 2022).