What is in the outputs?

Pytmosph3R can generate multiple types of output files.

HDF5 output file

The main file generated by Pytmosph3R is an HDF5 file (see write_hdf5() or library_output), named by default output_pytmosph3r.h5. If written correctly, there should be the model inputs in a first group (Model) and the outputs in a second one (Output). The group Model should follow the structure of Model. The group Output should list the following subgroups:

  • atmosphere

    aerosols, gas, pressure, temperature, altitude & altitude levels for each point in the 3D grid defined in the parameter grid.

  • input_atmosphere

    • altitude: altitude computed in each point of the input grid.

  • transmission, emission, lightcurve and phasecurve:

    Outputs associated to each mode. An important output in the emission mode is the raw_flux map of emission of all vertical columns (lat/lon) in the model, and the phase_curve (if activated). In the transmission mode, you might be interested by the transmittance data cube.

The group Output should also list the spectral data (see Exo_k.Spectrum):

  • spectrum_noised

    The value of the noised output spectrum.

  • spectrum_value

    The value of the noiseless output spectrum.

  • wnedges & wns

    The wavenumbers (centers and edges).

The HDF5 file also stores the version of the code that has been used in an attribute program_version . To print this attribute of an output file output_pytmosph3r.h5, you can for example use the command:

h5dump -a program_version output_pytmosph3r.h5

netCDF output file

A netCDF file (by default output_pytmosph3r.nc) can be generated by Pytmosph3R via write_netcdf().

This file can be read with Ncview or ParaView. A small ParaView tutorial is available in How to visualize the data with ParaView?.

Spectrum

A simpler format with the spectrum in a .dat format (by default pytmosph3r_spectrum.dat) can also be generated via write_spectrum(). The file consist of two columns: (1) the wavelengths (in \(\mu m\), in increasing order, and (2) the corresponding transit depths \((R_p/R_s)²\).