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A Floor in the Sun's Photospheric Magnetic Field: Implications for an Independent Small-scale Dynamo

  • Authors: E. W. Cliver, S. M. White, I. G. Richardson

E. W. Cliver et al 2024 The Astrophysical Journal Letters 961 .

  • Provider: AAS Journals

Caption: Figure 4.

Top panel: annual solar wind B values (1845–2022; Owens et al. 2016) with a ∼2.8 nT floor indicated. Bottom panel: composite annually averaged diurnal geomagnetic variation rY showing the return to a ∼33 nT floor at each solar minimum from 1840 to 2014 (Svalgaard 2016).

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