> I wonder if maybe it just has a very powerful magnetic field that protects it, just like Earth's does.
With an orbit of 1.3 days, I would guess that it is tidally locked, which I think would make it unlikely to have a strong magnetic field.
With an orbit of 1.3 days, I would guess that it is tidally locked, which I think would make it unlikely to have a strong magnetic field.
[edit: Never mind. I think. Apparently it's rotation of two layers of core relative to each other that generates the field. However... since the plant is so close to its star, what would the effects be of a core rotating in a strong stellar field?]
[0] https://www.quora.com/How-does-the-magnetic-field-of-a-star-....
[1] “Energy flux determines magnetic field strength of planets and stars”, U. R. Christensen et al, Nature vol 457, pages 167–169
[2] https://en.wikipedia.org/wiki/Homopolar_generator#Astrophysi....
[3] https://exoplanets.nasa.gov/news/217/earth-like-exoplanets-m....
[4] https://www.youtube.com/watch?v=HjfOdjpNZHo (Talk by Evgenya Shkolnik, part of Short Course on Magnetic Fields: A Window to a Planet's Interior and Habitability at the Keck Institute for Space Studies at Caltech on August 12, 2013)
Planets with short orbital periods are close to the star. If a planet is close enough to the parent star, the gravity of the star is strong enough to lock the rotation of the planet such that one side is always facing the star.