New Measurements of T Tauri Magnetic Fields: Testing Magnetospheric Accretion Johns-Krull, C. M. ; Valenti, J. A. ; Piskunov, N. E. ; Saar, S. H. ; Hatzes, A. P. Abstract Publication: Magnetic Fields Across the Hertzsprung-Russell Diagram Pub Date: 2001 Bibcode: 2001ASPC..248..527J