What is the origin of the Milky Way's magnetic field?

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SUMMARY

The origin of the Milky Way's magnetic field is primarily attributed to the collective electromagnetic radiation emitted by numerous stars, rather than the supermassive black hole at the galaxy's center. The activity surrounding the black hole, including accretion and radiation, contributes to the magnetic environment but is not the sole source. The cosmic microwave background provides a negligible magnetic influence. The discussion highlights the significance of stellar contributions to the overall galactic magnetic field.

PREREQUISITES
  • Understanding of electromagnetic radiation
  • Familiarity with supermassive black holes and their accretion processes
  • Knowledge of quasars and their mechanisms
  • Basic concepts of galactic structure and dynamics
NEXT STEPS
  • Research the role of accretion discs in black hole environments
  • Explore the properties and implications of cosmic microwave background radiation
  • Study the formation and characteristics of quasars
  • Investigate the magnetic fields of other galaxies for comparative analysis
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Astronomers, astrophysicists, and students interested in galactic dynamics and magnetic field generation in the universe.

alvarogz
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I was wondering what is the source of the magnetic field of our galaxy. Is it possible that such source could be the super massive black hole in the center of the galaxy?
Regards.
 
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Have not heard of this...the cosmic microwave background is an outside source of electomagnetic radiation and will therefore have a VERY VERY weak "magnetic field".

Otherwise I know of no galactic wide field.

Rather than the supermassive black hole itself, as a source, I'd GUESS that all the activity in it's vicinty, accretion, radiation, etc would possibly be a more significant source.

The quasar is powered by an accretion disc around the black hole.

See here for a general discussion on quasars:

http://en.wikipedia.org/wiki/Quasar
 
Another thought:
In our own solar system, not necessarily the entire galaxy, our own sun emits electromagnetic radiation ...all the time...hence there is an associated magnetic field...

But multiply this by the millions/billions (whatever it is) of suns throughout our galaxy and of course there results galactic wide magnetic fields coming from virtually all directions and distances...
 

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