Units

The default units assumed when ingesting the config file (unless specified, see below) are:

Parameter	Default Input Unit
wavelength ranges	micron
P0	bar
d_syst	parsec
R_pl	R_Earth
M_pl	M_Earth
stellar_temperature	K
stellar_radius	R_sun
semimajor_axis	au
T_m	K
R_m	R_Earth
cloud_species_top_pressure	bar
cloud_species_thickness	bar
cloud_species_particle_radius	cm
wavelength	micron
flux	erg s-1 Hz-1 m-2

These are all associated with astropy units and constants and can be indexed with any aliases associated with this module. All other quantities (e.g.mass fractions, reflectance, emissivity) are assumed to be unitless.

If you need a custom unit, you can define a custom unit in the USER-DEFINED UNITS section. This needs to be expressed in terms of astropy constants in the config file (e.g. custom_meter: 1.01 m).

Within the retrieval, these units will be converted if necessary into the standard Output Units, which are the ones used also when saving the output (unless otherwise specified in the plotting routines).

Parameter	Default Output Unit
wavelength ranges	micron
P0	bar
d_syst	m
R_pl	cm
M_pl	g
stellar_temperature	K
stellar_radius	cm
semimajor_axis	cm
T_m	K
cloud_species_top_pressure	bar
cloud_species_thickness	bar
cloud_species_particle_radius	cm
wavelength	micron
flux	erg s-1 Hz-1 m-2