Use of a time delay dynamo model to obtain solar-like sunspot cycles

E. Amouzou1*, D. Nandy2, A. Muñoz-Jaramillo3, and P. Martens1,3
1Montana State University, PO BOX 173840, Bozeman, MT, USA, 59717
22Indian Institute for Science Education & Research, Kolkata, PO BCKV Main Office, Mohanpur, West Bengal, 741 252, India
3Harvard Smithsonian Center for Astrophysics, 60 Garden St, Cambridge, MA, USA, 02138

View Full Article: [PDF]

Abstract

Using a delay-differential equation model, we simulate the solar dynamo. We find that solar-like dynamo solutions exist in certain parameter regimes for which the dynamo number is less than or about equal to -3 (|ND| > 3 , ND < 0) and that sunspot cycle periods of 11 years can be reproduced with the parameter values set at a magnetic di usivity of η = 3.5 × 1012 cm2/s and a total time delay of approximately 2.8 yr.

Fig. 1 Fig. 2 Fig. 3


<< Previous Article | Next Article >>Back to Asics_Vol_010

Keywords : Sun: interior, magnetic fields