A new fancy data visualisation interface is now ready for public browsing. The main cluster table provides direct links like this example on A370.
Category Archives: News
Our poster at the conference ‘Future Directions in Galaxy Cluster Surveys’
For an overview of the AMALGAM project, have a look at the poster that we presented at the conference ‘Future Directions in Galaxy Cluster Surveys‘ , organized by the Observatoire de Paris and held in Paris on June 23rd-27th 2014!
http://clusters2014.obspm.fr
Talk at the final meeting of the Great3 challenge
The results obtained by the AMALGAM team in the Great3 blind data analysis competition were presented at the Great3 final meeting, held in Pittsburgh, PA: you can find a PDF version of our talk here!
AMALGAM ranks 2nd in the Great3 Challenge after tie-break
We tested our procedure for shear estimation by participating to the Great3 weak lensing analysis competition. Along the lines of the previous Great+ and Step+ challenges, the Great3 challenge was a 6-month data analysis challenge for weak lensing cosmology, which ended on Apr. 30th. Participants were given large datasets of images of stars and distant galaxies, simulating ground-like and space-like observations, and were challenged to derive the underlying unknown shear.
Several levels of complexity were tested in the simulations: real galaxies with HST morphology or analytical Sersic profiles, single stack measurements or multi-epoch datasets, constant or variable PSFs, constant or variable shear, and a combination of all of these effects.
The Amalgam procedure ranked second (out of 19 teams) in the overall competition, and we were able to derive a low-systematic shear estimate in most test branches.
