Liquid water on both sides of a tidally locked planet. Feasible?

I'm brainstorming for a rocky planet with similar mass to that of Earth's, orbiting a red dwarf star. It is tidally locked with no natural satellites, yet I'm bent on having liquid water on both sun-facing and "nighttime" sides of the planet.

1. For that to be possible, I explored the possibility of a denser atmosphere, perhaps a higher content of COâ‚‚, ocean and winds that diminish the temperature differences between night and day sides, tidal heating, volcanic activity, and strong mantle convection.

2. Since it orbits a red dwarf star, a strong magnetic field must exist to prevent the planet's atmosphere from being stripped away by solar winds. Though it wouldn't be a flare star, as a red dwarf, I think it would still be less stable in terms of luminosity than our sun. Despite having slow rotation, could the planet's powerful magnetic field be justified by strong mantle convection and plate tectonics?

3. It has a year of roughly 15"“30 days, and though it doesn't have any natural satellites, I'm considering another rocky planet with an orbit close enough to exert a gravitational pull that would cause strong tides (hopefully making a liquid ocean on both sides of the planet more feasible).

4. I'm also considering an axial tilt that would allow inhabitants to measure time through seasons in the year-long day.

I'm having a go at world building for a high school project, and I'm starting with the planet. A reality check from this community seemed necessary as soon as I found you.

I'm still very much an amateur at this. I'd appreciate any information.

posted over 7 years ago

kirani100‭

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