LSST Applications  21.0.0-142-gef555c1e+42c9bccae2,22.0.0+052faf71bd,22.0.0+1c4650f311,22.0.0+40ce427c77,22.0.0+5b6c068b1a,22.0.0+7589c3a021,22.0.0+81ed51be6d,22.0.1-1-g7d6de66+6cae67f2c6,22.0.1-1-g87000a6+314cd8b7ea,22.0.1-1-g8760c09+052faf71bd,22.0.1-1-g8e32f31+5b6c068b1a,22.0.1-10-g779eefa+a163f08322,22.0.1-12-g3bd7ecb+bbeacc25a9,22.0.1-15-g63cc0c1+2a7037787d,22.0.1-17-ge5a99e88+3d2c1afe2e,22.0.1-19-g88addfe+6cae67f2c6,22.0.1-2-g1cb3e5b+84de06d286,22.0.1-2-g8ef0a89+6cae67f2c6,22.0.1-2-g92698f7+1c4650f311,22.0.1-2-ga9b0f51+052faf71bd,22.0.1-2-gb66926d+5b6c068b1a,22.0.1-2-gcb770ba+0723a13595,22.0.1-2-ge470956+ff9f1dc8d5,22.0.1-22-g608e23ac+2ac85e833c,22.0.1-29-g184b6e44e+8b185d4e2d,22.0.1-3-g59f966b+11ba4df19d,22.0.1-3-g8c1d971+f90df4c6d0,22.0.1-3-g997b569+d69a7aa2f8,22.0.1-3-gaaec9c0+4d194bf81c,22.0.1-4-g1930a60+283d9d2f1a,22.0.1-4-g5b7b756+c1283a92b8,22.0.1-4-g8623105+6cae67f2c6,22.0.1-7-gba73697+283d9d2f1a,22.0.1-8-g47d23f5+43acea82f3,master-g5f2689bdc5+40ce427c77,w.2021.38
LSST Data Management Base Package
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.