Photometry.jl

Installation

To install from the REPL, enter Pkg-mode (])

pkg> add Photometry

Getting Started

Here is a basic example to do some aperture photometry using CircularAperture and CircularAnnulus. The aperture_photometry function performs the photometry using a given method.

data = ones(100, 100)
err = ones(100, 100)

ap1 = CircularAperture(50, 50, 3)
# partial overlap
ap2 = CircularAperture(0.5, 0.5, 5)

results = aperture_photometry([ap1, ap2], data, err)
@assert results.aperture_sum[1] ≈ 9π
@assert results.aperture_sum[2] ≈ 25π / 4

results

# output
2×4 DataFrame
│ Row │ xcenter │ ycenter │ aperture_sum │ aperture_sum_err │
│     │ Float64 │ Float64 │ Float64      │ Float64          │
├─────┼─────────┼─────────┼──────────────┼──────────────────┤
│ 1   │ 50.0    │ 50.0    │ 28.2743      │ 5.31736          │
│ 2   │ 0.5     │ 0.5     │ 19.635       │ 4.43113          │

Contributing

If you're interested in contributing, go ahead and check out the issues or make a pull request. If you add a new feature, please write appropriate unit tests for it and bump the package's minor version.

License

The work derived from astropy/photutils is BSD 3-clause and the work derived from kbarbary/sep is BSD 3-clause. All other work is considered MIT expat. Therefore this work as a whole is BSD 3-clause. LICENSE contains all licenses and any files using derived work are noted at the top of the file.