10/25/07LXO Meeting - GSFC1 Solar Wind Charge Exchange X-ray Simulations Ina Robertson Thomas E. Cravens University of Kansas Ina Robertson Thomas E. Cravens.

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Presentation transcript:

10/25/07LXO Meeting - GSFC1 Solar Wind Charge Exchange X-ray Simulations Ina Robertson Thomas E. Cravens University of Kansas Ina Robertson Thomas E. Cravens University of Kansas

10/25/07LXO Meeting - GSFC2 Outline The Charge Exchange Model Contributions to the soft X-ray efficiency factor  Interstellar neutral hydrogen Interstellar neutral helium Geocoronal neutral hydrogen The Charge Exchange Model Contributions to the soft X-ray efficiency factor  Interstellar neutral hydrogen Interstellar neutral helium Geocoronal neutral hydrogen

10/25/07LXO Meeting - GSFC3 The Charge Exchange Model

10/25/07LXO Meeting - GSFC4 Equations:

10/25/07LXO Meeting - GSFC5 Solar Wind composition

10/25/07LXO Meeting - GSFC6 Fast or Slow?

10/25/07LXO Meeting - GSFC7

10/25/07LXO Meeting - GSFC8 Interstellar Neutral Hydrogen n H =0.15e -5/r

10/25/07LXO Meeting - GSFC9 Interstellar Neutral Helium

10/25/07LXO Meeting - GSFC10 n He =0.015e -1/r

10/25/07LXO Meeting - GSFC11 Terrestrial neutral Hydrogen

10/25/07LXO Meeting - GSFC12

10/25/07LXO Meeting - GSFC13

10/25/07LXO Meeting - GSFC14

10/25/07LXO Meeting - GSFC15 Solar Wind Density

10/25/07LXO Meeting - GSFC16 Terrestrial Hydrogen

10/25/07LXO Meeting - GSFC17 Intensities

10/25/07LXO Meeting - GSFC18 Combined Results

10/25/07LXO Meeting - GSFC19 Looking the other way

10/25/07LXO Meeting - GSFC20 The Efficiency Factor 

10/25/07LXO Meeting - GSFC21  depends on Solar wind composition (hence solar wind speed) Neutral solar wind charge exchanges with Helium? Hydrogen? Argon? Solar wind composition (hence solar wind speed) Neutral solar wind charge exchanges with Helium? Hydrogen? Argon?

10/25/07LXO Meeting - GSFC22 For average solar wind conditions:  = 6.0 x eV cm 2 (hydrogen)  = 3.0 x eV cm 2 (helium)  = 6.0 x eV cm 2 (hydrogen)  = 3.0 x eV cm 2 (helium)

10/25/07LXO Meeting - GSFC23 Lunar Modeling

10/25/07LXO Meeting - GSFC24 Two observation points

10/25/07LXO Meeting - GSFC25 The local bubble

10/25/07LXO Meeting - GSFC26

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