Simulated O VI Doppler dimming measurements of coronal outflow velocities

Details Simulated O VI Doppler dimming measurements of coronal outflow velocities Simulated O VI Doppler dimming measurements of coronal outflow velocities

Nov 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992esasp.348..121s&link_type=abstract

In ESA, Proceedings of the First SOHO Workshop: Coronal Streamers, Coronal Loops, and Coronal and Solar Wind Composition p 121-1

Other

1

Doppler Effect, Flow Velocity, Solar Corona, Space Plasmas, Mathematical Models, Plasma Diagnostics, Resonance Scattering, Velocity Measurement

Scientific paper

The possibility of determining O(5+) outflow velocities by using a Doppler dimming analysis of the resonantly scattered intensities of O VI lambda 1031.9 and lambda 1037.6 is addressed. The technique is sensitive to outflow velocities, W, in the range W greater than 30 and less than 250 km/s and can be used for probing regions of the inner solar corona, where significant coronal heating and solar wind acceleration may be occurring. These velocity measurements, when combined with measurements of other plasma parameters (temperatures and densities of ions and electrons) can be used to estimate the energy and mass flux of O(5+). In particular, it may be possible to locate where the flow changes from subsonic to supersonic and to identify source regions for the high and low speed solar wind. The velocity diagnostic technique is discussed with emphasis placed on the requirements needed for accurate outflow velocity determinations. Model determinations of outflow velocities based on simulated Doppler observations are presented.

Affiliated with

Also associated with

No associations

Rating

Simulated O VI Doppler dimming measurements of coronal outflow velocities does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Simulated O VI Doppler dimming measurements of coronal outflow velocities, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Simulated O VI Doppler dimming measurements of coronal outflow velocities will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1552204