Solar internal rotation as seen from SOHO MIDI data

Details Solar internal rotation as seen from SOHO MIDI data Solar internal rotation as seen from SOHO MIDI data

Jun 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002esasp.508..111v&link_type=abstract

In: Proceedings of the SOHO 11 Symposium on From Solar Min to Max: Half a Solar Cycle with SOHO, 11-15 March 2002, Davos, Switze

Computer Science

5

Sun: Interior, Solar Rotation

Scientific paper

We report results of inverting the rotational splittings of solar p-mode frequencies measured from the MDI data, using an adaptive regularization technique as described by Strakhov & Vorontsov (2001). We analyse the spatial and temporal structure of the variations in the internal rotation, which constitute the 11-yr solar torsional oscillations. We employ all the data collected over half a solar cycle to analyse further the time-independent component of the differential rotation, particularly focusing on the solar tachocline region. We address systematic errors in the rotational splitting measurements, as indicated by the inversion residuals, which appear to restrict the accuracy of the current helioseismic measurements.

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