Spyctres is a tool for analysing stellar spectra. It can compare a measured spectrum with publicly-available libraries of spectral templates in order to find the closest match.
Developer: Etienne Bachelet
Please note that Spyctres is still under development.
For the time being, the best way to install Spyctres is to clone its Github repository, and run the setup.py. It is recommended that you create and activate a virtual environment before proceeding with this installation.
venv> git clone https://github.com/ebachelet/Spyctres.git
venv> cd Spyctres/
venv> python setpy.py install
Spyctres makes use of pysynphot and its successor package stsynphot as dependencies.
These can both be installed via pip:
venv> pip install pysynphot
venv> pip install stsynphot
Lastly, you will need to download the stellar spectrum library used as templates in Spyctres fitting
process. Tarballs of these libraries are linked from the pysynphot ReadTheDocs page
in the second table.
Download and unpack these files into a local directory. In order to tell Spyctres where to find this library, the path to it should be declared as an environment variable in any script or shell where the software is run, e.g.
os.environ['PYSYN_CDBS'] = '/my/path/cdbs/'The quick_example.py script in this repository provides a worked demonstration of the fitting process.