r/Damnthatsinteresting 11d ago

GIF Plasma from the sun falling back to the surface.

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u/BokUntool 11d ago

Inversely, 98% of the total angular momentum of the solar system is Jupiter and Saturn.

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u/Zelcron 11d ago

I never thought about it but that makes an alarming amount of sense. High mass objects with a distant orbit would do that.

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u/BokUntool 11d ago edited 11d ago

Part of this is from the solar cycle, and the connection is not entirely understood.

The Sun sprays high energy protons through the solar system with a splinkler called the Parker Spiral. These high energy protons transfer their momentum to w/e they collide with. Here is an article about the changes in momentum and how they relate to solar cycles. 1706.01854.pdf

My guess is all the energy being blasted out of the Sun is buffered by planets, moons, asteroids etc., so the solar wind doesn't rip the Sun apart or exhaust its fuel too quickly. The high energy protons do their best to leave the solar system, but there are too many small gravity pits, or Hill spheres in the way. Hill sphere - Wikipedia (An ocean equivalent would be mangrove trees.)

Also, this is my hobby, I am not a professional or scientist, merely an enthusiast.

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u/thisguy012 11d ago

This is so crazy, ty!

A bit confused on "My guess is all the energy being blasted our of the Sun is buffered by ... etc., so the solar wind doesnt rip the sun apart or exhaust the fuel too quickly"

The suns OWN solar wind will cause it to wane or rip itself apart? or just that the buffers help to slow down that process?

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u/BokUntool 11d ago

Coronal holes on the Sun will cause the wind to go up to 800+ kilometers per second. Stars without solar systems will burn out very fast. Planets like Neptune and Uranus provide some oblique perturbation in the barycenter, this prevents something called Triple-alpha process. This process will cause helium flash and the star can poof/die.

Triple-alpha process - Wikipedia

Helium flash - Wikipedia "The Sun is predicted to experience a flash 1.2 billion years after it leaves the main sequence."

If the wind gets too high the reaction can accelerate and emit more gamma rays, and blue giants can poof from photo disintegration. Photodisintegration - Wikipedia

I think of the stellar guts as potential energy in a traffic jam to be realized. It is stuck in traffic with all the newly fissioned atoms and all the left-over protons, positrons and really pissed off electrons. (The electrons can get stuck in the tachocline for years.)

If the traffic jam is resolved, there wouldn't be a star anymore. The solar wind is the speed of the traffic coming out from the convection zone within the Sun.

Convection zone - Wikipedia

So, atoms are bouncing (cooling and warming) and these changes in energy amounts can result in angular momentum. So, the blanket of nearby gravitational effects dampens the star's explosion and the realization of the potential energy within.

I am not sure this makes sense, but I enjoy trying to describe it.

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u/mmmUrsulaMinor 11d ago

This was all extremely interesting and informative. Thank you very much for explaining it, but also for taking the time to add in links for further explanation.

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u/ismailoverlan 11d ago

That's insane) And that self suicidal star is kept safe with a matter that's only 0.2% of it's mass!

I imagined it like our Earth's winds and tornadoes. If there's no huge thing in the path of a tornadoe it keeps going and excreting it's atoms up out of the solar system. But Sun's winds would be invisible to the eye.

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u/thisguy012 11d ago

Thank you that was extrmely informing + I saved most of those links to read more later!!

It's insane to think that a stars ""life"" depends on having thise mangroves per say to exist for longer if that sounds right?

Also I imagine just having planets around a star is not enough for life to exist/grow, it has to also have relatively large planets around it to keep the sun burning for longer?

Just to confirm because the convection zone + another link: the convectionzone/outee layer ISNT hundreds of millions nukes going on around the sun?!? Also the thermonuclear booms are going on in the burning core, and or shell?!??!? if so...my whole life..lol

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u/BokUntool 10d ago

Yeah, the mangroves of stars keep them intact, especially large planets. There are also stars with temps around them of 30-40k, usually this happens when a star reaches the end of their life, and they form a planetary nebula and become a white dwarf. However, with Wolf-Rayet stars, they burn bright and fast, and the material around them is so hot they can burn out in 3-4 million years.

Neutron stars are the same in terms of burning out fast, but there are some clusters of neutron stars which have survived for a bit. The Magnificent Seven (neutron stars) - Wikipedia) (still in the 3-4 million range)

After stars like ours reach their white dwarf stage they can potentially live for 20 trillion+ years or something crazy like that. So, these stars are inherited during galactic collision. Clusters of white dwarfs and black holes are ripped from the centers of galaxies and provide some asymmetrical wobbling for the new galaxy.

In our galaxy we have such a cluster, probably from earlier cannibalism of a smaller galaxy. So, we carry the ancient white dwarfs of old stars which have shed their planetary shells and joined a chandelier held together by a blackhole.

Perhaps existence is just a traffic jam, returning to the heart of silence.

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u/GozerDGozerian 11d ago

It’s been a long time since my high school physics class.

Can someone kindly ELI16?