Model for habitable Earth like worlds tide-locked in 1:1 orbital resonance to M type stars

[Marc Wheeler]

Many planets have been discovered for us to assume a large percentage of M type stars have Earth like planets, those with a mass and composition in raw materials similar to Earth. A significant number of these planets become tide locked in a 1:1 resonance. A typical model for these worlds allows a habitable ring to exist on these planets in between the scorched day side of the planet and the frozen night side of the planet.
One problem for life development on these worlds is the proximity to solar flares and CMEs of the parent star, especially in early stages of stellar evolution.
An alternative scenario is to place such a planet on the extreme outer edge of what we would presently consider the habitable zone. This would create conditions where the habitable zone ring would exist skewed and smaller pushed towards the day side of the planet that receives enough direct radiation to keep water a liquid and promote photosynthesis. In theory, the habitable zone could occupy only a small portion of the planet, while the star is still providing enough energy to maintain both a gaseous atmosphere, and a geo-climate system that could include storms, glaciers, mountains and oceans.
The existence of water as a solid, liquid and gas would allow climate regulation. Given enough initial water and other volatiles the atmosphere would be replenished from the migration, melting and evaporation of atmospheric constituents.
I would call these types of worlds "bullseye" worlds.

What do you think?

Marc Wheeler
Teacher

 

[paddoboy]

Many planets have been discovered for us to assume a large percentage of M type stars have Earth like planets, those with a mass and composition in raw materials similar to Earth. A significant number of these planets become tide locked in a 1:1 resonance. A typical model for these worlds allows a habitable ring to exist on these planets in between the scorched day side of the planet and the frozen night side of the planet.
One problem for life development on these worlds is the proximity to solar flares and CMEs of the parent star, especially in early stages of stellar evolution.
An alternative scenario is to place such a planet on the extreme outer edge of what we would presently consider the habitable zone. This would create conditions where the habitable zone ring would exist skewed and smaller pushed towards the day side of the planet that receives enough direct radiation to keep water a liquid and promote photosynthesis. In theory, the habitable zone could occupy only a small portion of the planet, while the star is still providing enough energy to maintain both a gaseous atmosphere, and a geo-climate system that could include storms, glaciers, mountains and oceans.
The existence of water as a solid, liquid and gas would allow climate regulation. Given enough initial water and other volatiles the atmosphere would be replenished from the migration, melting and evaporation of atmospheric constituents.
I would call these types of worlds "bullseye" worlds.

What do you think?

Marc Wheeler
Teacher

Hi Marc......Interesting concept. I am only an aged matured amateur at this game [or as I like to call it, an old bastard] but even Earth, through tidal gravitational effects, will one day be tidally locked to our Moon. The Moon will also be about double its present distance...this will occur in the far distant future [around 3 or 4 billion years from memory] and strangely enough, around the time that M31 will be merging with our Milky Way, and the Sun will be approaching the red giant phase and may even engulf what would be left of the Earth.

Another aspect of course is that goldilock zones in stellar systems will change with stellar maturity.

One other interesting fact is that Mercury due to its low near negligible axial tilt, could very well have water at its pole regions as well as goldilock temperature ranges. I think the water in the form of ice has been verified.
Imagine a future outpost on Mercury!!

 

[Marc Wheeler]

Hi Marc......Interesting concept. I am only an aged matured amateur at this game [or as I like to call it, an old bastard] but even Earth, through tidal gravitational effects, will one day be tidally locked to our Moon. The Moon will also be about double its present distance...this will occur in the far distant future [around 3 or 4 billion years from memory] and strangely enough, around the time that M31 will be merging with our Milky Way, and the Sun will be approaching the red giant phase and may even engulf what would be left of the Earth.

Another aspect of course is that goldilock zones in stellar systems will change with stellar maturity.

One other interesting fact is that Mercury due to its low near negligible axial tilt, could very well have water at its pole regions as well as goldilock temperature ranges. I think the water in the form of ice has been verified.
Imagine a future outpost on Mercury!!

Thanks for the reply!

I can imagine a human outpost on Mercury, but I would not want to be anywhere that close to the Sun.
I am pretty sure the Moon is already tide-locked to the Earth. Maybe I don't understand the concept fully.

I guess my point with the post is that we base our evaluation on what the habitable zone is based on our Earth's climate system, and our Earth is likely not typical of most exoplanets we are finding.

Marc

P.S. - Our Milky Way galaxy will never merge with that foreign Andromeda galaxy, Trump will see to that! (Humor intended)

 

[Michael 345]

Our Milky Way galaxy will never merge with that foreign Andromeda galaxy, Trump will see to that! (Humor intended)

China will

 

[paddoboy]

Thanks for the reply!
I am pretty sure the Moon is already tide-locked to the Earth. Maybe I don't understand the concept fully.

Of course! I am speaking though of Earth being also tidally locked to the Moon...in other words, we will reach a period in the far distant future, when a day on Earth, will be equal to a lunar month and Earth will always have one side facing the Moon, just as the Moon has one side facing the Earth. This is already evident with Pluto and Charon notably, and some of the moons of Jupiter and Saturn.

 

[Derek.H.]

Many planets have been discovered for us to assume a large percentage of M type stars have Earth like planets, those with a mass and composition in raw materials similar to Earth. A significant number of these planets become tide locked in a 1:1 resonance. A typical model for these worlds allows a habitable ring to exist on these planets in between the scorched day side of the planet and the frozen night side of the planet.
One problem for life development on these worlds is the proximity to solar flares and CMEs of the parent star, especially in early stages of stellar evolution.
An alternative scenario is to place such a planet on the extreme outer edge of what we would presently consider the habitable zone. This would create conditions where the habitable zone ring would exist skewed and smaller pushed towards the day side of the planet that receives enough direct radiation to keep water a liquid and promote photosynthesis. In theory, the habitable zone could occupy only a small portion of the planet, while the star is still providing enough energy to maintain both a gaseous atmosphere, and a geo-climate system that could include storms, glaciers, mountains and oceans.
The existence of water as a solid, liquid and gas would allow climate regulation. Given enough initial water and other volatiles the atmosphere would be replenished from the migration, melting and evaporation of atmospheric constituents.
I would call these types of worlds "bullseye" worlds.

What do you think?

Marc Wheeler
Teacher

Mr. Teacher ,
Temperature-wise , you've got it . Precipitation-wise , consider : The M-class planets will be tide-locked . On thin atmosphere planets (like ours) , the dark-side is likely to be freezing cold . This of course , will act as a giant cold-trap , concentrating the planet's moisture mostly there . The end result will be a desertified light-side , with only small amounts of water-vapor in the air . A denser atmosphere , or more insolation , could warm the dark-side enough to prevent glaciation . This would induce heavy precipitation on the dark-side , and rivers/rains in specific regions of the light-side , as well . This would be a zonal condo-world , harsh but usable by man .
D.H.

 

[Write4U]

I wonder if, viewed from a mathematical perspective, we might be able to predict the absolute necessary equations that make the emergence of biochemical and biological a mathematical necessity.

Throughout history, numerous clues and hints regarding geometry and frequency have been staring at us, calling to us, and waiting for us to put them into place like pieces of a giant puzzle. Here at the dawn of a new age, this sonic-geometric puzzle is finally nearing completion, revealing the building blocks of a language based on energy, frequency and form....more

https://www.sonicgeometry.com/

video3 @ 11:45 shows some remarkable vibrational patterns.!

 

[Write4U]

We are products of geometry and harmony.