frei: Fast radiative transfer for exoplanet inference
Contents
frei: Fast radiative transfer for exoplanet inference¶
Install the bleeding-edge version of frei with:
python -m pip install git+https://github.com/bmorris3/frei
and go from zero to RT in five lines:
import matplotlib.pyplot as plt
import astropy.units as u
from frei import Planet, Grid, load_example_opacity
# Define planetary system parameters
planet = Planet.from_hot_jupiter()
# Define a grid in wavelength, pressure, and temperature; set temperature
grid = Grid(
planet,
n_wl_bins=300, # number of wavelength bins
n_layers=15, # number of pressure layers
T_ref=2400 * u.K, # reference temperature at 0.1 bar (~T_eff)
)
# Load synthetic opacities, for demonstration purposes only
grid.load_opacities(
opacities=load_example_opacity(grid)
);
# Compute emission spectrum
emission_result = grid.emission_spectrum(
# set n_timesteps>1 for iteration towards radiative equilibrium
n_timesteps=1
)
# Plot the "dashboard", showing important quantities
fig, ax = grid.emission_dashboard(*emission_result)
plt.show()
(Source code, png, hires.png, pdf)
