On Uma KheowanChananate UthaisarSupichai KantrasiriStefan C. MüllerMahidol UniversityOtto von Guericke University of Magdeburg2018-07-242018-07-242004-12-01Chemical Physics Letters. Vol.399, No.4-6 (2004), 506-511000926142-s2.0-10944257729https://repository.li.mahidol.ac.th/handle/20.500.14594/21265Rigidly rotating spiral waves are investigated in the light sensitive excitable Belousov-Zhabotinsky reaction under local feedback control. Each light pulse is applied at a moment that corresponds to the passage of the wave front through a particular measuring point. For a small distance between the measuring point and the initial location of the spiral core, a resonance attractor with hypocycloidal shape is observed, whereas for a larger distance an epicycloidal resonance attractor occurs. The size of the attractor can be changed by introducing a time delay. Experimental and numerical results are compared with an earlier developed theory on the resonance attractor. © 2004 Elsevier B.V. All rights reserved.Mahidol UniversityChemistryPhysics and AstronomyArticleSCOPUS10.1016/j.cplett.2004.10.046