Limits on the magnetic field strength at the base of the solar convection zone |
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| Authors: | Sydney D'Silva Robert F Howard |
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| Institution: | (1) Theoretical Astrophysics, Tata Institute of Fundamental Research, 400 000 Bombay, India;(2) National Solar Observatory, National Optical Astronomy Observatories, 85726 Tucson, AZ, USA |
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| Abstract: | Howard (1993) finds a relationship between the tilt angles of BMRs (Bipolar Magnetic Regions) and the separation between their leading and following polarities; the tilt angle increases with polarity separation. Here we present a more detailed analysis of this relationship and show that this effect constrains the strength of the magnetic field at the bottom of the convection zone to a value between 40 and 150 kG, which confirms the constraints put by D'Silva and Choudhuri (1993) based on Joy's law (the tilt-latitude relationship), through an entirely different approach.Operated by the Association of Universities for Research in Astronomy, Inc., under CooperativeOperated by the Association of Universities for Research in Astronomy, Inc., under Cooperative |
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