EightBitTransit is an MIT-licensed Cython code that:
- Can calculate the light curve of any pixelated image transiting a star;
- Can invert a light curve to recover the "shadow image" that produced it.
To install EightBitTransit, download this directory, navigate to it, and run:
python setup.py build_ext --inplace
python setup.py install
- Numpy
- Scipy
- Matplotlib
- Copy
- Math
- Itertools
- Collections
See ./examples/examples.ipynb for examples of both the forward and inverse shadow imaging problem, including for dip 5 of Boyajian's Star. This code reproduces figure 12 of Sandford & Kipping 2018 (https://arxiv.org/abs/1812.01618).
Repeated TransitingImage() calls can cause python to run out of memory in certain cases (thanks to textadactyl for pointing this out!)--when you are done with a TransitingImage object, deallocate it explicitly, i.e.:
ti = TransitingImage(...)
some operations on ti, etc.
ti = None