B du @sLdZddlZddlmZmZmZddlmZ ddl m Z mZm Z e Zeddge jed d d ed d ge jdejde jded dd eddgde je jdejejed dd eddgde je jdejejed dd eddgedgdgdfgd d d!d"Z[[[ [[ dd#lmZedk rHeee 7ZdS)$z This module defines magnitude zero points and related photometric quantities. The corresponding magnitudes are given in the description of each unit (the actual definitions are in `~astropy.units.function.logarithmic`). N)UnitBasedef_unitUnit)si)cgsr astrophysZBolZL_bolFzULuminosity corresponding to absolute bolometric magnitude zero (magnitude ``M_bol``).) namespaceprefixesdocZbolZf_bolg$@zVIrradiance corresponding to appparent bolometric magnitude zero (magnitude ``m_bol``).ZABZABfluxg1n;z5AB magnitude zero flux density (magnitude ``ABmag``).ZSTZSTfluxg|~+0/>z5ST magnitude zero flux density (magnitude ``STmag``).ZmgymaggynZnanog& .>zMaggies - a linear flux unit that is the flux for a mag=0 object.To tie this onto a specific calibrated unit system, the zero_point_flux equivalency should be used.cCst|}t|fgS)a An equivalency for converting linear flux units ("maggys") defined relative to a standard source into a standardized system. Parameters ---------- flux0 : `~astropy.units.Quantity` The flux of a magnitude-0 object in the "maggy" system. )rr)Zflux0Z flux_unit0rf/work/yifan.wang/ringdown/master-ringdown-env/lib/python3.7/site-packages/astropy/units/photometric.pyzero_point_flux)s r)generate_unit_summary)__doc__numpyZ_numpycorerrrZastropy.constantsrZ_sirrglobalsZ_nsZL_bol0piZpcZergcmsZHzZAArutilsrZ_generate_unit_summaryrrrr s2 $ &&