1. Cosmology and Galaxies Level 3 Requirements
Collated by
Richard McMahon and Joe Mohr
2016, June 24th
Belgrade

2. L3 requirements
Ability to rerun source detection with different background estimators
Motivation:
Photometry in central regions of clusters
Detection of inter-cluster light
Extended emission around large galaxies e.g. tidal tails
Large resolved galaxies
May need to be able to ’add sky that was subtracted’ back into L2 coadd images
A residual image might be a useful product i.e. coadd–model based on the catalogue parameters
2016, June 24th
Belgrade

3. L3 requirements
Ability to rerun source detection with a different kernel or deblending parameter or other catalogue software tunable parameters
Motivation:
To investigate effects and also some science cases maybe require non- standard parameters
Detection of inter-cluster light
Extended emission around large galaxies e.g. tidal tails
May need to be able to ’add sky that was subtracted’ back into L2 coadd images
A residual image might be a useful product i.e. coadd–model based on the catalogue parameters
2016, June 24th
Belgrade

4. L3 Requirements
Next steps Access to L2 products of LSST-like L2 data simulated products; coadd images, ancillary products (psf, weight maps, masks etc) and catalogues Acess to L2 products of LSST-like L2 real data like Subaru HSC data processed by LSST DM pipeline
2016, June 24th
Belgrade