Umbral oscillations measured in the Stokes-V inversion point

Details Umbral oscillations measured in the Stokes-V inversion point Umbral oscillations measured in the Stokes-V inversion point

Aug 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984soph...94...99b&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 94, Aug. 1984, p. 99-103.

Physics

10

Solar Oscillations, Sunspots, Umbras, Line Spectra, Power Spectra

Scientific paper

The inversion point of the circular Zeeman polarization profile (V-Stokes) parameter is used to observe umbral Doppler oscillations free from disturbing influences of parasitic light. In a second step, purely umbral lines are used to avoid remaining influences from the V-profile of the (oscillating) penumbra. Among a total of nine sunspot umbrae, three exhibit oscillations within the various 1.5 to 2.5 hr samples. The periods differ significantly from 300 s, vary with time, and occur within time intervals of high tranquility thus explaining the lack of oscillations in the remaining sunspots.

Affiliated with

Also associated with

No associations

Rating

Umbral oscillations measured in the Stokes-V inversion point 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 Umbral oscillations measured in the Stokes-V inversion point, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Umbral oscillations measured in the Stokes-V inversion point will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1678948