clevar.geometry module

clevar.geometry.convert_units(dist1, unit1, unit2, redshift=None, cosmo=None)[source]

Convenience wrapper to convert between a combination of angular and physical units.

Supported units: radians, degrees, arcmin, arcsec, Mpc, kpc, pc (letter case independent)

To convert between angular and physical units you must provide both a redshift and a cosmology object.

Parameters

  • dist1 (array_like) – Input distances

  • unit1 (str) – Unit for the input distances

  • unit2 (str) – Unit for the output distances

  • redshift (float) – Redshift used to convert between angular and physical units

  • cosmo (astropy.cosmology) – Astropy cosmology object to compute angular diameter distance to convert between physical and angular units

Returns

dist2 – Input distances converted to unit2

Return type

array_like