Magnetic Fields on Sudarsky Class II Gas Giants

Click For Summary
SUMMARY

The discussion focuses on the magnetic fields of Sudarsky Class II gas giants, particularly in comparison to those of Uranus, Neptune, Jupiter, and Saturn. It highlights that Uranus and Neptune have tilted magnetic fields due to their shallow ammonia-water oceans, while Sudarsky Class II gas giants, with their larger iron cores and abundant oceans, may exhibit significantly stronger magnetic fields. The inquiry also touches on the implications of these magnetic fields for auroras on moons orbiting such gas giants, emphasizing the potential for a Van Allen belt similar to that of Jupiter.

PREREQUISITES
  • Understanding of magnetic field generation in planetary bodies
  • Knowledge of Sudarsky classification of gas giants
  • Familiarity with the composition of Uranus and Neptune
  • Basic concepts of planetary atmospheres and auroras
NEXT STEPS
  • Research the magnetic field characteristics of Sudarsky Class II gas giants
  • Explore the role of metallic hydrogen in magnetic field generation
  • Investigate the formation and dynamics of Van Allen belts around gas giants
  • Study the influence of magnetic fields on auroras in planetary atmospheres
USEFUL FOR

Astronomers, planetary scientists, science fiction writers, and educators interested in the magnetic properties of gas giants and their effects on surrounding celestial bodies.

MattRob
Messages
208
Reaction score
29
Hello again PF,
I've been doing some light reading on different magnetic fields of different gas giants, and what was really fascinating is how different Uranus and Neptune's fields were from Jupiter's and Saturn's, due to their different mass and composition?

What I read was that both of the Ice giants have magnetic fields heavily tilted from the norm, and Uranus is even off-center by 1/3 the planet's radius, apparently due to most of the magnetic field being generated from their relatively shallow Ammonia-water oceans rather than the deeper metallic hydrogen.

But, a Sudarsky Class II Gas Giant would orbit at a distance from the star similar to Earth, so that in the formation of the star system, this hypothetical gas giant would have a much greater abundance of oxygen, carbon, nitrogen, metals, and silicates, resulting in large oceans and a very large iron core.

Is there any models or predictions on what this planet's magnetic field would be like? It would have extremely large oceans, and a large iron core.
Can someone give me a reasonable guess as to if it's field would be significantly stronger than Jupiter's because of the Iron and large oceans?


My interest is sparked because of science fiction I'm writing about a moon of a gas giant. Auroras play a large role in the culture of life on one of the moons; and so I've been thinking of how, and if the gas giant's magnetic field would influence the location, behavior, and intensity of the moon's auroras, not to mention if or not the giant would generate a deadly Van Allen belt much like Jupiter's.
 
Astronomy news on Phys.org
Jupiter has a lot of metallic hydrogen and an incredible spin rate - hard to compete as a magnetic field generator.
 

Similar threads

  • · Replies 24 ·
Replies
24
Views
4K
  • · Replies 16 ·
Replies
16
Views
5K
  • · Replies 2 ·
Replies
2
Views
3K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 11 ·
Replies
11
Views
2K
  • · Replies 4 ·
Replies
4
Views
5K
  • · Replies 10 ·
Replies
10
Views
4K
  • · Replies 27 ·
Replies
27
Views
4K
  • · Replies 1 ·
Replies
1
Views
3K
  • · Replies 3 ·
Replies
3
Views
2K