Oscillations in the Sun with SONG: Setting the scale for asteroseismic investigations

M. Fredslund Andersen; P. Pallé; J. Jessen-Hansen; K. Wang; F. Grundahl; T. R. Bedding; T. Roca Cortes; J. Yu; S. Mathur; R. A. Gacia; T. Arentoft; C. Régulo; R. Tronsgaard; H. Kjeldsen; J. Christensen-Dalsgaard

doi:10.1051/0004-6361/201935175

Free Access

Fig. 5.

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Upper panel: échelle diagram of a slightly smoothed version of the power spectrum. The ridges from the p-modes with different l-value are clearly visible, as are the alias peaks from the window function. Lower panel: collapsed échelle diagram with labels centred above the peaks marking the l_{{0, 1, 2, 3}} ridges and the ±1 and ±3 daily aliases (no secondary alias present).

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