Tools to compute PSF photometry with Roman simulated data
Project description
Roman-lcs
Tools to do PSF photometry on Roman simulated data from TRExS group.
The PSF toosl are based on PSFMachine.
Installation
This package can be intalled using the pip command from this repository.
pip install roman-lcs
Tutorial
For a full tutorial on how to build a PRF model, evaluate it to compute the photometry, and build light curves, see the this Jupyter notebook
Simulated Images
The simulated images are produced by the RimTimSim package.
Here's an example image:
PRF Model
The PRF model is computed from the image itself, using the source catalog to fix the stars positions and fitting all sources at the same time to get the PRF model. See the figure below for a PRF example:
Light Curves
Light curves are computed by fitting the PRF at every frame and saved into FITS files.
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