Phys. Rev. Lett. 89, 061101 (2002) - Biorthogonal Decomposition Techniques Unveil the Nature of the Irregularities Observed in the Solar Cycle

Biorthogonal Decomposition Techniques Unveil the Nature of the Irregularities Observed in the Solar Cycle

P. D. Mininni, D. O. Gómez, and G. B. Mindlin

Phys. Rev. Lett. 89, 061101 – Published 22 July 2002; Erratum Phys. Rev. Lett. 89, 109901 (2002)

Abstract

We present a biorthogonal decomposition of the temporal and latitudinal distribution of sunspots recorded since 1874. We show that the butterfly diagrams can be interpreted as the result of approximately constant amplitudes and phases of two oscillations with periods close to 22 years. Our analysis reveals clear evidence of the absence of low-dimensional chaos, at least for the time scales that can be analyzed with this database. This result suggests that the spatiotemporal irregularities observed in the solar cycle are due to the superposition of regular structures with a stochastic background.

Received 11 December 2001
Publisher error corrected 14 August 2002

DOI:https://doi.org/10.1103/PhysRevLett.89.061101

©2002 American Physical Society

Corrections

14 August 2002

Erratum

Publisher’s Note: Biorthogonal Decomposition Techniques Unveil the Nature of the Irregularities Observed in the Solar Cycle [Phys. Rev. Lett.PRLTAO0031-9007 89, 061101 (2002)]

P. D. Mininni, D. O. Gómez, and G. B. Mindlin

Phys. Rev. Lett. 89, 109901 (2002)

Authors & Affiliations

P. D. Mininni, D. O. Gómez^*, and G. B. Mindlin

Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, C. Universitaria, 1428 Buenos Aires, Argentina

^*Instituto de Astronomía y Física del Espacio (CONICET, UBA), Ciudad Universitaria, 1428 Buenos Aires, Argentina.

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Issue

Vol. 89, Iss. 6 — 5 August 2002

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