Chromospheric oscillations observed in the 1336-A C II line with OSO-8

Physics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

12

Carbon, Chromosphere, Plasma Oscillations, Power Spectra, Satellite Observation, Solar Spectra, Atomic Spectra, Ionic Waves, Light Scattering, Line Shape, Molecular Ions, Oso-8, Periodic Variations, Plasma Radiation, Plasma Spectra, Solar Atmosphere, Time Lag

Scientific paper

Satellite observations of velocity and intensity oscillations of the upper-chromospheric C II line at 1336 A were made. The dominant period of oscillation is 300 s, with little evidence of the power peak in the range 150-200 s which has been observed in other chromospheric lines. Peak-to-peak amplitudes are 2 km/s and 8% in velocity and intensity, respectively. Tentative evidence for a 900-s periodicity is presented. Relative phase measurements show that the maximum intensity for the 300-s oscillation leads the maximum blueshift by approximately 145 s. Comparison of line and background (scattered light) intensity variation shows upward wave propagation with time delays between the 1800-A continuum and the 1336-A C II variation of 27 s and 70 s for different cases.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Chromospheric oscillations observed in the 1336-A C II line with OSO-8 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 Chromospheric oscillations observed in the 1336-A C II line with OSO-8, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chromospheric oscillations observed in the 1336-A C II line with OSO-8 will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1420027

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.