skyscapes.disk.base

Abstract disk interface for extended-source surface brightness.

Classes

AbstractDisk

Extended-source surface brightness map.

Module Contents

class skyscapes.disk.base.AbstractDisk

Bases: equinox.Module

Extended-source surface brightness map.

Subclasses return contrast (flux ratio relative to the host star) per pixel. The concrete System multiplies by star.spec_flux_density to turn that into ph/s/m^2/nm per pixel.

incl_deg / pa_deg are supplied at render time rather than stored on the disk so the System’s midplane orientation drives every disk component consistently. Disks whose geometry is pre-baked into their representation (e.g. ExovistaDisk’s contrast cube) may ignore the arguments; parametric disks (GraterDisk, ExovistaParametricDisk) consume them.

abstractmethod surface_brightness(wavelength_nm, time_jd, incl_deg, pa_deg)

Return contrast per pixel, shape (ny, nx).

Parameters:

• wavelength_nm (jaxtyping.Array)

• time_jd (jaxtyping.Array)

• incl_deg (jaxtyping.Array)

• pa_deg (jaxtyping.Array)

Return type:

jaxtyping.Array

abstractmethod spatial_extent()

Return (width_arcsec, height_arcsec).

Return type:

tuple[float, float]