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Thread: Solar wind questions

  1. #1 Solar wind questions 
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    If the solar wind encounters a moveable magnetic field, what happens? Is it exactly the same as when regular wind hits a moveable object (a momentum collision calculation) or are the magnetic forces of repulsion calculated differently?

    Also, I believe the space between Earth and Mars is technically quite hot (somewhere between 100-300C if I'm right), but as there are so few particle collisions, would an object that needed to be kept at a certain temperature require the same amount of cooling as it would on Earth?

    Finally, does anybody know the mass/volume density of solar wind around Earth?

    Thanks very much.

    Solar wind density near Earth: 3-6 atoms per cubic centimeter
    Solar wind temperature near Earth: 700C
    Solar wind speed near Earth: 700km/s


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  3. #2  
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    It may be a little early to bump this, but if anybody does know the answers or knows of a source where I can find them I'd be really grateful.


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  4. #3  
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    According to the 2005 edition of the Columbia Encyclopedia: "Near the earth (the solar wind) has a density ranging from 3 to 6 atoms per cc, a velocity of 450 mi (700 km) per sec, and a temperature of about 1,300░F (700░C); during periods of greater sunspot activity it shows corresponding increases in density, temperature, and velocityŚreaching speeds of 2 million mph (3.2 million kph)."
    Atmo Kivelson, in Introduction to Space Physics. New York: Cambridge University Press. 1995 states: "The Solar Wind has an average density of 7.1 atoms/cm3"

    Both of these quotations were obtained here. Curiously this was the third link of a google search I ran on the words "mass/volume density of solar wind around Earth" from your initial request.

    As to your first question my gut is telling me to have you google magneto-electro-hydrodynamics. But then my gut can be unreliable.
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  5. #4 Re: Solar wind questions 
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    Well these scientific questions are some where very technical and may be scientists know about it. But for a normal person its very difficult to answer or explain it.

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