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Solar flux unit
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| solar flux unit | |
|---|---|
| Unit system | non-SI metric unit |
| Unit of | spectral flux density |
| Symbol | sfu |
| Conversions | |
| 1 sfu in ... | ... is equal to ... |
| SI units | 10−22 W⋅m−2⋅Hz−1 |
| CGS units | 10−19 erg⋅s−1⋅cm−2⋅Hz−1 |
The solar flux unit (sfu) is a non-SI unit of spectral flux density often used in solar radio observations, such as the F10.7 solar activity index. It is equivalent to 10−22 watts per square metre per hertz (SI), 10−19 ergs per second per square centimetre per hertz (CGS), and 104 Jansky.[1]
References
[edit]- ^ 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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