flows-tools

Observer tools for the FLOWS pipeline. Contains python packages, scripts, and notebooks for the following tasks:

• Pointing, OB generation helper with VLT HAWK-I, finder chart maker.
• Image cutouts
• Template subtraction
• Fixing fits image headers of multi-extension fits files
• Hubble Diagrams
• Lightcurve fitting of Type Ia SN lightcurves

Available Packages:

• flows_get_brightest: The VLT HAWK-I pointing script that will create a finding chart for HAWK-I H-band images given a flows target, and optional rotation (position angle) and telescope offsets. Uses tendrils to query objects. Optionally plots a finding chart. Easily extensible to use with other instruments.

install with:

pip install flows_get_brightest
NOTE: Installation requires python >= 3.10 due to tendrils dependency.

Usage:

Installs a user script get_brightest that can be run from the command line. get_brightest --help.

test with:

pip install flows_get_brightest[test]
pytest

Note: user script only tested to work on Linux and Mac OS.

Available scripts:

• fixlcogt.py A script for fixing LCOGT headers not preserved by other scripts such as imagematch.
• cutouts.py A flexible script for making image cutouts while preserving original headers and extension and applying the same cutout to all image extensions present in the fits file.

Available notebooks:

• Subtraction.ipynb Example notebook for doing manual subtractions following @sholmbo's method.
• image_cutout.ipynb Example notebook that was the inspiration for cutouts.py.
• hubble diagram notebook.
• lightcurve fitting notebook.