H2_diss_kd – astrobear

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Version 5 (modified by trac, 12 years ago) ( diff )
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Calculates collisional dissociation rates, kd, for high & low density limits, and interpolates between them, for collisions between H2 and H, H2, He, or e

For high density limits:
- Collisions with H and H2 use Lepp & Shull: kdH = kdH_LS
- No high density limit collisions between H2 and He or e.
Low density limits:
- Collisions with H, use Dove & Mandy: kdL = kdL_DM
- Collisions with H2, use Martin & Keogh: kdL = kdL_MK
- Collisions with He or e, use Martin & Keogh: kd = kdL_MK (note this is kd, not kdL)
For H & H2:
- A critical density is calculated (different expression for H & H2) as the delineation between high & low density limits
- kd is then calculated by interpolating between kdH and kdL using the expression from Lepp & Shull