太陽接近型彗星(サングレーザー)の尾の変動から太陽磁場を調べた Probing the Solar Magnetic Field with a Sun-Grazing Comet Cooper Downs, Jon A. Linker, Zoran Mikić, Pete Riley, Carolus J. Schrijver, Pascal Saint-Hilaire Science 7 June 2013: Vol. 340 no. 6137 pp. 1196-1199 DOI: 10.1126/science.1236550 http://www.sciencemag.org/content/340/6137/1196.abstract