The t tauri wind blows out at the poles of the forming star. Material from the disc is being drawn into the central hub. Material from the outer reaches of the original cloud fragment is also still falling in. This material, along with the heat and pressures generated when the sphere of hot gasses first fell into a disc shape, cannot be contained by gravity and the excess blows out of the pro to star at both poles. This is the t tour wind
My question is ... How does the wind move across the disc if it is heading in perpendicular directions? Does the wind start out moving at right angles and then spread out in all directions. If so, at what distance outward does it hit the disc, like .5 AU? Does the wind help push material into the mid plane of the disc?
Later, as nuclear fusion progresses and the modern solar wind pushes outward, does this wind also escape along the poles and then move in all directions or does it emanate spherically? Is it this solar wind that resists disc material from continuing to be gravitationally pulled in to the sun?
Which wind cleared out most of the dust? Didn't one of these wind push a lot of dust and gas from the inner reaches of the solar system out to the frost line at Jupiter?
Clearing the dust of the disc
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Re: Clearing the dust of the disc
It doesn't move across the disc. But at this stage, the disc itself is still diffuse, and is collecting material from the surrounding gas cloud. The T Tauri wind disrupts the overall cloud, which means it can have some effect on the dynamics of the accretion disc, as well.Geologyhound wrote: My question is ... How does the wind move across the disc if it is heading in perpendicular directions?
Once fusion begins, solar wind and solar radiation are essentially spherical (there are no polar jets), so the infall of material from the accretion disc stops, and the entire region begins to be cleared of gas and dust.Later, as nuclear fusion progresses and the modern solar wind pushes outward, does this wind also escape along the poles and then move in all directions or does it emanate spherically? Is it this solar wind that resists disc material from continuing to be gravitationally pulled in to the sun?
Just the ordinary solar wind from a fusing star. (And there isn't much dust; mostly it is hydrogen that is blown away.)Which wind cleared out most of the dust?
Chris
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Chris L Peterson
Cloudbait Observatory
https://www.cloudbait.com
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Chris L Peterson
Cloudbait Observatory
https://www.cloudbait.com