spectral_radUniformCosmicBackground

Workspace.spectral_radUniformCosmicBackground(self, spectral_rad: pyarts3.arts.StokvecVector | None = None, freq_grid: pyarts3.arts.AscendingGrid | None = None) → None

Background spectral radiance is from a uniform cosmic background temperature.

\[\begin{split}\vec{I} = \left[ \begin{array}{c} \frac{2h\vec{\nu}^3}{c^2} \frac{1}{e^{\frac{h\vec{\nu}}{kT_c}} - 1} \\ 0 \\ 0 \\ 0 \end{array}\right],\end{split}\]

where \(T_c\) is the cosmic microwave background temperature. \(\nu\) is the frequency grid.

Author: Richard Larsson

Parameters:

spectral_rad (StokvecVector, optional) – A spectral radiance vector. See spectral_rad, defaults to self.spectral_rad [OUT]
freq_grid (AscendingGrid, optional) – A frequency grid. Unit: Hz. See freq_grid, defaults to self.freq_grid [IN]