Fig. 1From: Magnetohydrodynamics modeling of coronal magnetic field and solar eruptions based on the photospheric magnetic fieldObservations of the solar flare. a–c The solar flares in the EUV images for different wavelengths observed on the solar surface or in the solar atmosphere. From left to right, the wavelengths are 1600, 171, and 94 Å. The flares were observed by SDO/AIA at around 18:00 UT on 29 March 2014. d Time profile of the X-ray flux measured by the GOES 12 satellite on 29 March 2014. The solar X-ray outputs in the 1–8 Å and 0.5–4.0 Å passbands are plottedBack to article page