Table 1 Effect of different assumed H− angular scattering functions
From: Direct observations of negative ions on the Lunar surface by Chang'E-6
H− scattering function | \({{{{\rm{Y}}}}}_{{{{{\rm{bs,H}}}}}^{-}}\) [%] | n0 [cm−3] | h0 [km] |
|---|---|---|---|
As protons14 | \(2.{5}_{-0.8}^{+1.2}\) | \(0.1{8}_{-0.03}^{+0.04}\) | 9.7 |
As energetic neutral hydrogen6 | \(2.{3}_{-0.7}^{+1.3}\) | \(0.1{7}_{-0.03}^{+0.04}\) | 8.9 |
Isotropic | \(2.{0}_{-0.7}^{+1.0}\) | \(0.1{4}_{-0.02}^{+0.03}\) | 8.8 |
Lambert’s emission | \(2.{4}_{-0.8}^{+1.2}\) | \(0.1{8}_{-0.03}^{+0.04}\) | 10.7 |