MAVISIM

Image simulating tool for the next generation ESO instrument MAVIS. If you use MAVISIM please cite Monty et al. 2021.

Getting started

For full documentation, see mavisim.readthedocs.io. To get started, install via pip:

pip install mavisim

and use the CLI:

mavisim --help

which should output something like:

usage: mavisim [-h] [-o OUTPUT] [-d DISTS] [--static STATIC] [--header HEADER] field psfs

mavis image simulator

positional arguments:
  field                 file containing source field to simulate
  psfs                  specify PSFs fits file on disk to use in simulation

options:
  -h, --help            show this help message and exit
  -o OUTPUT, --output OUTPUT
                        specify name for output fits file
  -d DISTS, --dists DISTS
                        specify distortion file on disk to pre-distort sources with
  --static STATIC, -s STATIC
                        use only 1 psf (not field varying), at the given psf fits hdu index
  --header HEADER       dict to be parsed as header for saved fits file

Current Version

1.1 - EtE PSF - more accurate representation of the PSF, suitable for photometric and astrometric science cases

Documentation can be found here

Past Versions

1.0 - Fourier PSF - fast, most flexibility for astrometric modeling

Documentation can be found here

General Features

1. Can simulate full stellar field (eg. Milky Way Globular Cluster) from an input catalogue
2. Models three major sources of astrometric error introduced by the AO system:
   1. Tip-tilt residuals originating from uncorrected LO aberrations (dependent on the NGS constellation brightness and geometry) field variable
   2. HO aberrations originating from the LGS constellation and characteristics field variable
   3. Static field distortion originating from the AO module optics

Current Limitations

1. Monochromatic images only
2. Only compatible with input point source catalogues only

Future Versions

MAVISIM 1.2: Broadband End-to-End PSF

Broadband images! Starting with the V band

MAVISIM 2.0

Extended object version, not yet in development.