Solar Flux Unit
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Solar Flux Unit

The solar flux unit (sfu) is a convenient measure of spectral flux density often used in solar radio observations, such as the F10.7 solar activity index:[1]

1 sfu = 104 Jy = 10-22 W?m-2?Hz-1 = 10-19 erg?s-1?cm-2?Hz-1.

See jansky for further information about related units.


  1. ^ Tapping, K. F. (2013). "The 10.7 cm solar radio flux (F10.7)". Space Weather. 11 (7): 394-406. Bibcode:2013SpWea..11..394T. doi:10.1002/swe.20064.

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