Energy liberated during the flare in the [0.3−8.0] energy band for the stars in our sample (large triangles) and the stars of the XEST (plusses; Stelzer et al. 2007). Upward arrows denote lower limits. Filled triangles are stars with a disk in η Chamaleontis. Stars classified as classical T Tauri in Güdel et al. (2007) are marked with a large symbol (square or circle).