pynrc.nb_funcs.disk_rim_model

pynrc.nb_funcs.disk_rim_model(a_asec, b_asec, pa=0, sig_asec=0.1, flux_frac=0.5, flux_tot=1.0, flux_units='mJy', wave_um=None, dist_pc=None, pixsize=0.007, fov_pix=401)[source]

Simple geometric model of an inner disk rim that simply creates an ellipsoidal ring with a brightness gradient along the major axis.

Parameters

  • a_asec (float) – Semi-major axis of ellipse

  • ba_asec (float) – Semi-minor axis of ellipse

Keyword Arguments

  • pa (float) – Position angle of major axis

  • sig_asec (float) – Sigma width of ring model

  • flux_frac (float) – A brightness gradient can be applied along the semi-major axis. This parameter dictates the relative brightness of the minimum flux (at the center of the axis) compared to the flux at the out edge of the geometric ring.

  • flux_tot (float) – The total integrated flux of disk model.

  • flux_units (str) – Units corresponding to flux_tot.

  • wave_um (float or None) – Wavelength (in um) corresponding to flux_tot. Saved in output FITS header unless the value is None.

  • dist_pc (float or None) – Assumed distance of model (in pc). Saved in output FITS header unless the value is None.

  • pixsize (float) – Desired model pixel size in arcsec.

  • fov_pix (int) – Number of pixels for x/y dimensions of output model data.