Extended Data Table 1.
Scaling laws for dark BrC imaginary refractive index
| Y | Y0 | S | β |
|---|---|---|---|
| khigh BC fraction | 7.9 ± 2.3 | λ(nm) | −0.65 ± 0.05 |
| klow BC fraction | 57 ± 27 | λ(nm) | −1.08 ± 0.08 |
| knighttime oxidation | 80 ± 180 | λ(nm) | −1 ± 0.4 |
| kdaytime oxidation | 20 ± 50 | λ(nm) | −0.89 ± 0.32 |
Power law fitting coefficients of the form Y = Y0 Sβ for the measured imaginary index of refraction k of d-BrC particles under different conditions during FIREX-AQ. Units of wavelength of light λ is in nano meters (10−9 meters). The interval of λ is between 350 and 1200 nm. The error bars represent one standard deviation.