Outflow from the sun's polar corona

Details Outflow from the sun's polar corona Outflow from the sun's polar corona

Mar 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...266l..65o&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 266, Mar. 1, 1983, p. L65-L68. NSF-supported research;

Astronomy and Astrophysics

Astrophysics

18

Polar Regions, Resonance Lines, Solar Corona, Solar Spectra, Solar Wind, Ultraviolet Spectra, Doppler Effect, Emission Spectra, Line Spectra, Magnetohydrodynamic Flow, Rocket-Borne Instruments

Scientific paper

New observations of systematic Doppler shifts of EUV resonance lines formed both in the low corona and transition region are reported. They were made with an improved, high-resolution, stable, rocket-borne spectrometer flown on 1981 November 23. The chord of the solar disk scanned by the spectrometer crossed the north polar cap hole and its low-latitude extension, and also a compact low-latitude hole near sun center. Within both holes, the lines were systematically shifted to shorter wavelengths relative to the rest of the solar disk. These observations strengthen the association of negative Doppler shifts with coronal holes and indicate that this 'blueshift signature', previously observed only within small low-latitude holes, is also characteristic of the low-density polar corona. The mean relative blueshift measured in lambda 625 Mg X (T = 10 to the 6.15 power K) within the polar hole was about 8 km/s.

Affiliated with

Also associated with

No associations

Rating

Outflow from the sun's polar corona 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 Outflow from the sun's polar corona, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Outflow from the sun's polar corona will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1466033