|STEP: Shear TEsting Programme|
|STEP home||Simulations||Data||Mailing List||STEP Workshop|
|STEP 1: Analysis of simulated ground-based observations.||Status : Complete|
In the first STEP project a series of different weak lensing methods were used to analyse a set of SkyMaker simulations of ground based observations and a smaller set of Shapelet simulations . The analysis summary report is online along with the minutes of the December post-analysis STEP telecon. The first STEP paper which documents the results from the analysis of the SkyMaker simulations can be found here.
|STEP 2: Assessing the impact of complex galaxy morphologies with shapelet simulations.||Status : Complete|
In the second STEP project a series of different weak lensing methods were used to analyse a set of Shapelet simulations of ground based observations. These simulations have allowed us to assess the impact of galaxy morphology on our weak lensing analyses. We have also tested a more complex set of PSFs. The detailed results of the STEP2 analysis are online along with the minutes of the April STEP2 telecon. The input shears and catalogues can be downloaded. The second STEP paper which documents the results from the analysis of the Shapelet simulations can be found here.
|STEP 3: Space-based observations.||Status : Results online|
The results of the blind analysis of Shapelet simulations of space-based data are now online. Information about downloading the spaceSTEP simulations, can be found here.
If you would like to join the space-based subgroup of STEP please contact Catherine.
|STEP 4: Several simple steps.||Status : Stage 1 online|
The first stage of the STEP4 project is now available for download. These simulations will test to high precision the ability to measure shear for large galaxies (galaxy fwhm = 2x PSF fwhm) at different signal-to-noise levels. We plan to follow this first stage with progressively more complex simulations as discussed on the stepwiki webpage.
|Mirror STEP||Status : Simulations online|
Jes Ford and Jason Rhodes have developed a series of image simulations that test the impact of mirror size on shear measurement accuracy. These simulations are available for download until December 5th 2007. For more information see the Mirror STEP webpage.
Last modified 16th Nov.
STEP pages maintained by Catherine Heymans: heymans[at]physics.ubc.ca