Matthew J. Penn

2 ta ish

National Solar Observatory

1. DECREASING SUNSPOT MAGNETIC FIELDS EXPLAIN UNIQUE 10.7 cm RADIO FLUX

   W. Livingston, Matthew J. Penn, Leif Svalgaard

   MaqolaOAOchiq kirish20122 iqtibos

   ABIABI:AkademIndex/2026.other.208564

2. He i Vector Magnetic Field Maps of a Sunspot and Its Superpenumbral Fine-Structure

   Thomas A. Schad, Matthew J. Penn, H. Lin +1

   Maqola20152 iqtibos

   ABIABI:AkademIndex/2026.other.363792