title: On the dynamics of Liesegang-type pattern formation in a gaseous system.
abstract: Liesegang pattern formations are widely spread in nature. In spite of a comparably simple experimental setup under laboratory conditions, a variety of spatio-temporal structures may arise. Presumably because of easier control of the experimental conditions, Liesegang pattern formation was mainly studied in gel systems during more than a century. Here we consider pattern formation in a gas phase, where beautiful but highly complex reaction-diffusion-convection dynamics are uncovered by means of a specific laser technique. A quantitative analysis reveals that two different, apparently independent processes, both highly correlated and synchronized across the extension of the reaction cloud, act on different time scales. Each of them imprints a different structure of salt precipitation at the tube walls.
authors.affiliation: Centro de Investigaciones en Ciencias, Universidad Autónoma del Estado de Morelos, 62209 Cuernavaca, Morelos, México.
authors.forename: Elizeth
authors.initials: E
authors.lastname: Ramírez-Álvarez
authors.affiliation: Instituto de Ciencias Básicas y Aplicadas, Universidad Autónoma del Estado de Morelos, 62209 Cuernavaca, Morelos, México.
authors.forename: Fernando
authors.initials: F
authors.lastname: Montoya
authors.affiliation: Centro en Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, 62209 Cuernavaca, Morelos, México.
authors.forename: Thomas
authors.initials: T
authors.lastname: Buhse
authors.affiliation: Instituto de Ciencias Básicas y Aplicadas, Universidad Autónoma del Estado de Morelos, 62209 Cuernavaca, Morelos, México.
authors.forename: Wady
authors.initials: W
authors.lastname: Rios-Herrera
authors.affiliation: Centro de Investigaciones en Ciencias, Universidad Autónoma del Estado de Morelos, 62209 Cuernavaca, Morelos, México.
authors.forename: José
authors.initials: J
authors.lastname: Torres-Guzmán
authors.affiliation: Centro de Investigaciones en Ciencias, Universidad Autónoma del Estado de Morelos, 62209 Cuernavaca, Morelos, México.
authors.forename: Marco
authors.initials: M
authors.lastname: Rivera
authors.affiliation: Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México, 62210 Cuernavaca, Morelos, México.|Centro de Ciencias de la Complejidad, Universidad Nacional Autónoma de México, CU, DF, México.|Centro Internacional de Ciencias, A.C., Avenida Universidad S/N, 62131 Cuernavaca, Morelos, México.
authors.forename: Gustavo
authors.initials: G
authors.lastname: Martínez-Mekler
authors.affiliation: Centro de Investigaciones en Ciencias, Universidad Autónoma del Estado de Morelos, 62209 Cuernavaca, Morelos, México.|Centro de Ciencias de la Complejidad, Universidad Nacional Autónoma de México, CU, DF, México.|Centro Internacional de Ciencias, A.C., Avenida Universidad S/N, 62131 Cuernavaca, Morelos, México.
authors.forename: Markus F
authors.initials: MF
authors.lastname: Müller