LSSTApplications  17.0+124,17.0+14,17.0+73,18.0.0+37,18.0.0+80,18.0.0-4-g68ffd23+4,18.1.0-1-g0001055+12,18.1.0-1-g03d53ef+5,18.1.0-1-g1349e88+55,18.1.0-1-g2505f39+44,18.1.0-1-g5315e5e+4,18.1.0-1-g5e4b7ea+14,18.1.0-1-g7e8fceb+4,18.1.0-1-g85f8cd4+48,18.1.0-1-g8ff0b9f+4,18.1.0-1-ga2c679d+1,18.1.0-1-gd55f500+35,18.1.0-10-gb58edde+2,18.1.0-11-g0997b02+4,18.1.0-13-gfe4edf0b+12,18.1.0-14-g259bd21+21,18.1.0-19-gdb69f3f+2,18.1.0-2-g5f9922c+24,18.1.0-2-gd3b74e5+11,18.1.0-2-gfbf3545+32,18.1.0-26-g728bddb4+5,18.1.0-27-g6ff7ca9+2,18.1.0-3-g52aa583+25,18.1.0-3-g8ea57af+9,18.1.0-3-gb69f684+42,18.1.0-3-gfcaddf3+6,18.1.0-32-gd8786685a,18.1.0-4-gf3f9b77+6,18.1.0-5-g1dd662b+2,18.1.0-5-g6dbcb01+41,18.1.0-6-gae77429+3,18.1.0-7-g9d75d83+9,18.1.0-7-gae09a6d+30,18.1.0-9-gc381ef5+4,w.2019.45
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.