The Effect of Temperature Anisotropy on Observations of Doppler Dimming and Pumping in the Inner Corona

摘要: Recent observations of the spectral line profiles and intensity ratio O VI λλ1032 1037.6 doublet by Ultraviolet Coronagraph Spectrometer (UVCS) on Solar Heliospheric Observatory (SOHO), made in coronal holes below 3.5 RS, provide evidence for Doppler dimming λ1037.6 pumping chromospheric C II λ1037.0182 line. Evidence a significant kinetic temperature anisotropy O5+ ions was also derived from these observations. We show this Letter how component direction perpendicular to magnetic field, both isotropic anisotropic distributions, affects amount pumping. Taking into account, we further that observation less than unity can be accounted only if λ1036.3367 addition is effect. The inclusion implies speed reach 400 km s-1 around 3 which significantly higher reported UVCS values atomic hydrogen polar holes. These results imply oxygen flow much faster protons at heliocentric distance.