B Does being tidally locked affect a planet's magnetic field?

Quick question from an amateur:

Assume you have a tidally locked rocky planet around a red dwarf star.

I've heard that a magnetic field is or can be dependent upon the rotation of a planet (I've read that the lack of rotation of Venus was a possible reason for the weak magnetic field among other explanations like a severe collision in Venus' past which wrecked the convection process). Would this mean that tidally locked planets would not have a strong magnetic field?

Would lack of rotation affect convection from a hypothetical planet's mantle?

Would, say, a thirty day solar orbit be enough to churn the convection process?

Is this rotation needed at all?

I'm trying to understand if red dwarf stars would have the potential for habitable planets.

Thanks for any feedback.
 
3,362
936
No, magnetic fields are not generally significant in regarding heat emission of a planet.
Red stars though, could well harbour habitable planets regardless of magnetic fields.
The thing that a magnetic field does for Earth, is stopping the solar wind from stripping atoms from Earths atmosphere.
Not all planets have a magnetic field though, in fact smaller planets tend not to have one.
Being tidally locked though, that presents more of a problem.
Such planets will have only marginal regions on them that could be considered as habitable.
 
Last edited:
Thanks.
 

Want to reply to this thread?

"Does being tidally locked affect a planet's magnetic field?" You must log in or register to reply here.

Physics Forums Values

We Value Quality
• Topics based on mainstream science
• Proper English grammar and spelling
We Value Civility
• Positive and compassionate attitudes
• Patience while debating
We Value Productivity
• Disciplined to remain on-topic
• Recognition of own weaknesses
• Solo and co-op problem solving

Latest threads

Top