Boundary_layer Parameters

Boundary_layer.radiation

Says whether the boundary layer will radiate.

Type

Boolean (yes/no)

Parent(s)

• System_type: star, binary

File: setup_star_bh.c

Boundary_layer.power_law_index

The exponent 𝛼 in a power law SED applied to an AGN-style power law source for a non-AGN system. central source of the form .

See Radiation_types and Central_object.power_law_index.

Type

Double

Values

Any - but sign is not assumed, so for negative index use a negative value

Parent(s)

• Boundary_layer.radiation: True

• System_type: star, binary

File: setup_star_bh.c

Boundary_layer.luminosity

The luminosity of the boundary layer.

Type

Double

Unit

ergs/s

Values

Greater than 0

Parent(s)

• Boundary_layer.radiation: True

• Boundary_layer.rad_type_to_make_wind: models, power

File: setup_star_bh.c

Boundary_layer.power_law_cutoff

This is a low frequency cutoff for an AGN-style power law spectrum of a form , as applied to the boundary layer of a star. It prevents the power-law being applied to low frequencies and giving an odd SED. See Radiation_types and Boundary_layer.power_law_cutoff.

Type

Double

Unit

Hz

Values

Greater than 0

Parent(s)

• Boundary_layer.radiation: True

• System_type: star, binary

File: setup_star_bh.c

Boundary_layer.temp

The temperature of the boundary layer when radiating as a black body.

Type

Double

Unit

Kelvin

Values

Greater than 0

Parent(s)

• Boundary_layer.radiation: True

• Boundary_layer.rad_type_to_make_wind: bb

File: setup.c

Boundary_layer.rad_type_in_final_spectrum

Determines the luminosity and SED of the boundary layer. The code can cause a source to radiate differently in the ionisation and spectral cycles. This variable allows a boundary layer source to radiate differently from Boundary_layer.rad_type_to_make_wind during the cycles used to calculate the output spectra. This can be

Type

Enumerator

Parent(s)

• Boundary_layer.radiation: True

File: python.c

Boundary_layer.rad_type_to_make_wind

Determines the luminosity and SED of the boundary layer. The code can cause a source to radiate differently in the ionisation and spectral cycles. This variable allows a boundary layer source to radiate differently from Boundary_layer.rad_type_in_final_spectrum during the cycles used to calculate the wind ionisation state and temperature.

Type

Enumerator

Values

• bb: Black-body radiation. The boundary layer radiates as a black-body source with surface luminosity set by its effective temperature (Boundary_layer.temp) and resulting in a total luminosity proportional to its surface area.

• models: Radiate according to a model. Python can support tabulated models that output with a binned luminosity distribution depending on system properties like temperature and gravity. See Input_spectra.model_file. The total luminosity will be set by Boundary_layer.luminosity.

• power: Radiate following a power-law model as . The total luminosity will be set by Boundary_layer.luminosity.

Parent(s)

• System_type: star, binary

File: setup_star_bh.c