http://arxiv.org/abs/1810.05200
We present a physical mechanism of formation of tilt angles of sunspots due to the process of formation of active regions below the solar photosphere. The contribution of Coriolis force factors on large-scale flows of super-granular convection in turbulent media has been investigated in details. On the basis of earlier works by Kleeorin et al. (2016) and Safiullin et al. (2018) we give physical estimates of orders of magnitude of the effect and estimate the tilt angles near the solar equator, in the “Royal” zone of solar activity. The above model is based on the balance of the small-scale and large scale magnetic helicities and describes in details the sunspot formation process over the last five solar cycles (since 1964). We adopt this model for a wider class of manifestations of solar activity. We present latitudinal dependence of the mean tilt on these five solar cycles and time-latitudinal diagrams over a limited range of latitudes and phases of the solar cycle.
K. Kuzanyan, N. Safiullin, N. Kleeorin, et. al.
Mon, 15 Oct 18
39/56
Comments: manuscript in Russian, total 17 pages, 4 figures (with Abstract and Figures, submitted to Astrophysics
You must be logged in to post a comment.