Does 𝓿 Cep indicate a non-axisymmetric dynamo?
نویسندگان
چکیده
منابع مشابه
Does the butterfly diagram indicate a solar flux - transport dynamo ?
We address the question whether the properties of the observed latitude-time diagram of sunspot occurence (the butterfly diagram) provide evidence for the operation of a flux-transport dynamo, which explains the migration of the sunspot zones and the period of the solar cycle in terms of a deep equatorward meridional flow. We show that the properties of the butterfly diagram are equally well re...
متن کاملA dynamo model for axisymmetric and non-axisymmetric solar magnetic fields
Increasing observations are becoming available about a relatively weak, but persistent, non-axisymmetric magnetic field co-existing with the dominant axisymmetric field on the Sun. It indicates that the non-axisymmetric magnetic field plays an important role in the origin of solar activity. A linear non-axisymmetric α − Ω dynamo model is set up to discuss the characteristics of the axisymmetric...
متن کاملDoes Prolactin Indicate Severity of Psoriasis?
Background: Psoriasis vulgaris is a common chronic and inflammatory disease of skin that its etiology is not completely known. However, it seems that genetic and environmental factors play a role in this disease. In vitro studies show that prolactin as a neurohormone has an etiologic effect on psoriasis. This study aimed to compare serum prolactin levels in psoriatic patients with control group...
متن کاملDynamics of Axisymmetric Truncated Dynamo Models
S u m m a r y : An important question regarding the study of mean field dynamo models is how to make precise the nature of their underlying dynamics. This is difficult both because relatively little is known about the dynamical behaviour of infinite dimensional systems and also due to the numerical cost of studying the related partial differential equations. As a first step towards their unders...
متن کاملMode selection mechanism and magnetic diffusivity in a non-axisymmetric solar dynamo model
The generation of solar non-axisymmetric magnetic fields is studied based on a linear α −Ω dynamo model in a rotating spherical frame. The model consists of a solarlike differential rotation, a magnetic diffusivity varied with depth, and three types of α-effects with different locations, i.e. the tachocline, the whole convective zone and the sub-surface. Some comparisons of the critical α-value...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International Astronomical Union Colloquium
سال: 1986
ISSN: 0252-9211
DOI: 10.1017/s0252921100091211