Koen, Chris2013-11-122013-11-122006Koen, C. (2006). Evidence for rapid evolution of periodic variations in an ultracool dwarf. Monthly Notices of the Royal Astronomical Society, 367: 1735–1738http://hdl.handle.net/10566/799The results of three short photometric monitoring runs on the L0 dwarf 2MASS J06050196−2342270, during three consecutive nights, are presented. The observations show the persistent presence of a 2.4-h period, with an IC band amplitude which decreased from 27 to 11 mmag over the three nights. The amplitude in the RC band appeared to be substantially smaller than in the IC band.en© 2006 copyright Oxford University Press. This file may be freely used for educational purposes, as long as it is not altered in any way. Acknowledgement of the authors and the source is required.Stars: low-mass, brown dwarfsStars: variables: otherArticle