Extended Data Fig. 4: Temperature stratification along the motion path of the simulated wave propagation.
From: A chromospheric resonance cavity in a sunspot mapped with seismology
Temperature plotted as a function of wave propagation distance for 5 different stratification models. The solid black line represents the sunspot model50 ‘M’ that has been scaled using outputs from the HAZEL inversions applied to the spectropolarimetric He i 10830 Å data products. The shaded grey region highlights the depth of the embedded resonance cavity along the motion path of the propagating magnetoacoustic waves, which can be visualized as extending from 0 km to the steep temperature gradient associated with the transition region. Here, the wave path spans a distance of 2120 km, which for vertical magnetic fields (i.e., \(\cos \theta =1\)) also corresponds to the upper geometric height of the chromosphere (i.e., 2120 km as indicated by the vertical black dotted line). The blue, orange, green and purple lines depict re-scaled sunspot atmospheres with the depth of the chromospheric resonance cavities resized by 80%, 90%, 110% and 120%, respectively. As before, the coloured vertical dotted lines highlight the upper chromospheric boundary for each re-scaled umbral atmosphere.
