An analytical MHD model for solar/stellar winds

• Type: Article in International Conference Proceedings Book
• Date: 1997

Authors

Lima, JJG (Author) FCUP; Priest, ER (Author) Other; Tsinganos, K (Author) Other

Conference proceedings International

Title: CORONA AND SOLAR WIND NEAR MINIMUM ACTIVITY - FIFTH SOHO WORKSHOP

5th SOHO Workshop on the Corona and Solar Wind Near Minimum Activity

OSLO, NORWAY, JUN 17-20, 1997

Indexing

ISI Web of Knowledge - 5 Citations

Scopus - 3 Citations

Scientific classification

FOS: Natural sciences > Physical sciences

Other information

Authenticus ID: P-001-CA1

Abstract (EN): We present an analytical solution of the steady MHD equations for an axisymmetric magnetized outflow emanating from a central rotating star. This model deals adequately with the continuity and momentum equations, while a full energy equation is not included at this stage. Instead, the heating required to sustain the outflow is deduced from the set of MHD equations. The analysis is based on a nonlinear separation of the variables and yields three anisotropy parameters controlling the dependence of the several quantities with latitude. Topologically, the outflow speed is controlled by an X-type critical point which filters a unique wind-type solution. This point is found at the location where the radial component of the flow velocity equals the fast MHD wave speed in that direction. Applications of this model to the solar wind, using Ulysses data, will be attempted.

Language: English

Type (Professor's evaluation): Scientific