Diffusive transport and in situ coalescence of magnetic flux tubes. I - Steady state solutions

Abstract

view Abstract Citations (6) References (58) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Diffusive transport and in situ coalescence of magnetic flux tubes. I - Steady state solutions Bogdan, T. J. Abstract There is increasing evidence of fibril character in astrophysical magnetic fields. The solar photosphere is an obvious example. The author suggests that the hierarchy of magnetic structures observed in the photosphere may be synthesized through the coalescence of the thin (R ≈ 2 - 3×102km), intense (B ≈ 1-2×103gauss) magnetic fibrils seen to be threading the solar surface. Indeed, the distribution of magnetic flux tube sizes in a large-scale fibril magnetic field is likely to result from the interplay between flux coalescence and fragmentation. To illustrate this point, the author considers the diffusion, and in situ coalescence, of parallel twisted magnetic flux tubes through a slab. The present paper concentrates on steady state solutions for the diffusive transport. Publication: The Astrophysical Journal Pub Date: December 1985 DOI: 10.1086/163718 Bibcode: 1985ApJ...299..510B Keywords: Magnetic Diffusion; Magnetic Field Configurations; Magnetic Flux; Solar Magnetic Field; Convection; Magnetohydrodynamics; Photosphere; Slabs; Steady State; Sunspots; Solar Physics full text sources ADS |