Differences between revisions 2 and 4 (spanning 2 versions)
⇤ ← Revision 2 as of 2019-09-17 21:02:47 →
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Editor: KeithLofstrom
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← Revision 4 as of 2019-09-17 21:11:20 → ⇥
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Editor: KeithLofstrom
Comment:
Deletions are marked like this. Additions are marked like this.
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 . 1.3e36 particles per second, presumed monatomic hydrogen  * 1.3e36 particles per second, presumed monatomic hydrogen
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 . slow wind 300–500 km/s, temperature ~1e5 K, twice as dense → 5e-15 kg/(m²-s)
 . fast wind 750 km/s, temperature ~8e5 K, half as dense → 3e-15 kg/(m²-s)
  . [[ https://web.archive.org/web/20080610125820/http://solarscience.msfc.nasa.gov/suess/SolarProbe/Page1.htm | WP ref ]]		  * slow wind 300–500 km/s, temperature ~1e5 K, twice as dense → 5e-15 kg/(m²-s)
  . RMS isotropic thermal velocity 1.6 km/s
   . RMS isotropic thermal velocity = sqrt( 3 k T / m ) ≈ 0.157 km/s * sqrt( T )
 * fast wind 750 km/s, temperature ~8e5 K, half as dense → 3e-15 kg/(m²-s)
  . RMS isotropic thermal velocity 4.5 km/s
  . [[ https://web.archive.org/web/20080610125820/http://solarscience.msfc.nasa.gov/suess/SolarProbe/Page1.htm | WP ref ]

Solar Wind

  • 1.3e36 particles per second, presumed monatomic hydrogen

    • WP ref

    • Area at 1 AU = 4π ( 150e9m )² = 2.8e23 m², hence flux = 1.3e36 H/s / 2.8e23 m² ≅ 5e12 H/(m²-s)
    • Hydrogen mass 1.67e-27 kg, mass flux - 8e-15 kg/(m²-s)
  • slow wind 300–500 km/s, temperature ~1e5 K, twice as dense → 5e-15 kg/(m²-s)
    • RMS isotropic thermal velocity 1.6 km/s
      • RMS isotropic thermal velocity = sqrt( 3 k T / m ) ≈ 0.157 km/s * sqrt( T )
  • fast wind 750 km/s, temperature ~8e5 K, half as dense → 3e-15 kg/(m²-s)

SolarWind (last edited 2019-09-17 22:04:53 by KeithLofstrom)