TY - JOUR AU - Fernández-Rañada, Antonio PY - 2000 DO - 10.1103/PhysRevE.62.7181 SN - 1063-651X UR - https://hdl.handle.net/20.500.14352/58974 T2 - Physical Review E AB - The stability of fireballs in a recent model of ball lightning is studied. It is shown that the balls shine while relaxing in:in almost quiescent expansion, and that three effects contribute to their stability: (i) the formation in each one during a... LA - eng M2 - 7181 PB - American Physical Soc. KW - Plasmas. TI - Ball lightning as a force-free magnetic knot TY - journal article VL - 62 ER -