LSSTApplications  18.0.0+106,18.0.0+50,19.0.0,19.0.0+1,19.0.0+10,19.0.0+11,19.0.0+13,19.0.0+17,19.0.0+2,19.0.0-1-g20d9b18+6,19.0.0-1-g425ff20,19.0.0-1-g5549ca4,19.0.0-1-g580fafe+6,19.0.0-1-g6fe20d0+1,19.0.0-1-g7011481+9,19.0.0-1-g8c57eb9+6,19.0.0-1-gb5175dc+11,19.0.0-1-gdc0e4a7+9,19.0.0-1-ge272bc4+6,19.0.0-1-ge3aa853,19.0.0-10-g448f008b,19.0.0-12-g6990b2c,19.0.0-2-g0d9f9cd+11,19.0.0-2-g3d9e4fb2+11,19.0.0-2-g5037de4,19.0.0-2-gb96a1c4+3,19.0.0-2-gd955cfd+15,19.0.0-3-g2d13df8,19.0.0-3-g6f3c7dc,19.0.0-4-g725f80e+11,19.0.0-4-ga671dab3b+1,19.0.0-4-gad373c5+3,19.0.0-5-ga2acb9c+2,19.0.0-5-gfe96e6c+2,w.2020.01
LSSTDataManagementBasePackage
Namespaces | Functions | Variables
Magnitude.h File Reference

Utilities for converting between flux and magnitude in C++. More...

#include <cmath>

Go to the source code of this file.

Namespaces

 lsst
 A base class for image defects.
 
 lsst::utils
 

Functions

double lsst::utils::nanojanskyToABMagnitude (double flux)
 Convert a flux in nanojansky to AB magnitude. More...
 
double lsst::utils::ABMagnitudeToNanojansky (double magnitude)
 Convert an AB magnitude to a flux in nanojansky. More...
 

Variables

const double lsst::utils::referenceFlux = 1e23 * pow(10, (48.6 / -2.5)) * 1e9
 The Oke & Gunn (1983) AB magnitude reference flux, in nJy (often approximated as 3631.0). More...
 

Detailed Description

Utilities for converting between flux and magnitude in C++.

Use astropy.units ABmag and nJy for converstions in python:

import astropy.units as u
mag = (flux*u.nJy).to_value(u.ABmag)
flux = (mag*u.ABmag).to_value(u.nJy)

Definition in file Magnitude.h.