Unique determination of model coronal magnetic fields using photospheric observations |
| |
Authors: | Xuepu Zhao J Todd Hoeksema |
| |
Institution: | (1) Center for Space Science and Astrophysics, Stanford University, 94305 Stanford, CA, USA |
| |
Abstract: | We show that the non-radial field-boundary condition (or the line-of-sight boundary condition) for the Laplacian-like equation developed by Bogdan and Low (1986) is sufficient to uniquely determine the model coronal magnetic field provided the electric currents are horizontal (or zero, the current-free case) at the solar surface as well as in the solar atmosphere between the photosphere and the source surface. The derived recursion formulae for the spherical harmonic coefficients can be used to determine the spherical harmonic coefficients in the solutions of the horizontal current models very efficiently. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |