Nonlinear Waves and Chaos in Space Plasmas UVCS observations(3.2)


Line profiles

UVCS/SOHO observations of O VI 1032 A and 1037 A at 2.1 RS, in a polar coronal hole (lower panel) (Kohl et al. 1997, Solar Physics, 175, 613). Each line consists of the coronal profile and narrow contribution from stray light plus F corona.

 Widths are 500 km/s, or kinetic temperatures of 200 MK!