damping of waves

More documents

Recommendations

Info

Helios data analysis procedure • Parameters: Core proton temperatures T ⊥ and T ⎜⎜ , in the directions perpendicular and parallel to the magnetic field, and parallel plasma beta, β ⎜⎜ . • The data are separately analyzed for two distance ranges: R < 0.4 AU and R > 0.4 AU. • Division into 24 bins for β ⎜⎜ , in the range from 0.1 to 10. • Division into 72 bins for the core temperature anisotropy, A = 1 − T ⊥ /T ⎜⎜ , in the range from −0.9 to 0.9. • The number <strong>of</strong> spectra in each bin is determined to obtain colour-coded distributions. • Statistical results given in two-dimensional histograms
Anisotropy histogram for r < 0.4 AU Firehose instability 24856 spectra ⎜⎜ Data fit: A = S β ⎜⎜ -α S = 1.73, α = 1.03 S= - 0.96, α = 1.18 Mirror instability Red lines at 8% level Marsch, Zhao and Tu, Ann. Geophysicae, 24, 2057, 2006
Page 1 and 2: Ion beams formed by Landau damping
Page 3 and 4: Proton beam drift versus beta The d
Page 5 and 6: Proton core heating and beam format
Page 7: Conclusions • Beams, diffusion pl
Page 10 and 11: Ion differential heating and accele
Page 12 and 13: Magnetic power spectrum Ion dissipa
Page 14 and 15: Temperature ratio versus beta T ⊥
Page 16 and 17: Correlation of anisotropy with tran
Page 20: Anisotropy histogram for r > 0.4 AU

damping of waves

Create successful ePaper yourself

Delete template?

Save as template?