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HAL: hal-00326477, version 1
arXiv: 0802.1214
DOI: 10.1214/08-AOAS222
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Annals Of Applied Statistics 3, 1 (2009) 6-37
Handbook for the GREAT08 Challenge: An image analysis competition for cosmological lensing
Sarah Bridle, John Shawe-Taylor, Adam Amara 1, 2, Douglas Applegate, Sreekumar T. Balan, Joel Berge 3, Gary Bernstein, Hakon Dahle 4, Thomas Erben, Mandeep Gill, Alan Heavens, Catherine Heymans, Will High, Henk Hoekstra, Mike Jarvis 5, Donnacha Kirk, Thomas Kitching, Jean-Paul Kneib 6, 7, 8, Konrad Kuijken, David Lagattuta, Rachel Mandelbaum, Richard Massey 9, Yannick Mellier 10, 11, 12, Baback Moghaddam, Yassir Moudden 2, 13, Reiko Nakajima, Stephane Paulin-Henriksson 2, Sandrine Pires, Anais Rassat, Alexandre Refregier 2, Jason D. Rhodes 9, 14, 15, Tim Schrabback, Elisabetta Semboloni 11, Marina Shmakova, Ludovic Van Waerbeke 11, 16, Dugan Witherick, Lisa Voigt, David Wittman
(2009)
The GRavitational lEnsing Accuracy Testing 2008 (GREAT08) Challenge focuses on a problem that is of crucial importance for future observations in cosmology. The shapes of distant galaxies can be used to determine the properties of dark energy and the nature of gravity, because light from those galaxies is bent by gravity from the intervening dark matter. The observed galaxy images appear distorted, although only slightly, and their shapes must be precisely disentangled from the effects of pixelisation, convolution and noise. The worldwide gravitational lensing community has made significant progress in techniques to measure these distortions via the Shear TEsting Program (STEP). Via STEP, we have run challenges within our own community, and come to recognise that this particular image analysis problem is ideally matched to experts in statistical inference, inverse problems and computational learning. Thus, in order to continue the progress seen in recent years, we are seeking an infusion of new ideas from these communities. This document details the GREAT08 Challenge for potential participants.
1:  Institut Supérieur des Etudes Technologiques (ISET)
Instituts Supérieurs des Etudes Technologiques
2:  Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA)
CEA : DSM/DAPNIA
3:  INRA, Génétique moléculaire des Invertébrés
Institut national de la recherche agronomique (INRA) : UR9999
4:  Institute of Theoretical Astrophysics (Institute of Theoretical Astrophysics)
University of Oslo
5:  Physical Sciences Division
British Antarctic Survey
6:  Laboratoire Astrophysique de Toulouse-Tarbes (LATT)
CNRS : UMR5572 – INSU – Observatoire Midi-Pyrénées – Université Paul Sabatier [UPS] - Toulouse III
7:  Laboratoire d'Astrophysique de Marseille (LAM)
CNRS : UMR6110 – INSU – Université de Provence - Aix-Marseille I
8:  UMS 831 unité mixte de service (UMS 831)
CNRS : UMS831 – Institut de recherche pour le développement [IRD] – CNES – INSU – Université Paul Sabatier [UPS] - Toulouse III – Observatoire Midi-Pyrénées
9:  California Institute of Technology (CALTECH)
California Institute of Technology
10:  Departement de Radioastronomie Millimétrique (DEMIRM)
Observatoire de Paris
11:  Institut d'Astrophysique de Paris (IAP)
CNRS : UMR7095 – INSU – Université Pierre et Marie Curie [UPMC] - Paris VI
12:  Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique (LERMA)
CNRS : UMR8112 – INSU – Observatoire de Paris – Université Pierre et Marie Curie [UPMC] - Paris VI – Université de Cergy Pontoise – Ecole normale supérieure de Paris - ENS Paris
13:  Laboratoire AIM, CEA/DSM-CNRS-Universit'e Paris Diderot, CEA Saclay
Université Paris VII - Paris Diderot
14:  Jet Propulsion Laboratory California Institute of Technology (JPL)
California Institute of Technology
15:  Berkeley University of California (UC BERKELEY)
UC Berkeley
16:  Canadian Institut for Theoretical Astrophysics
Canadian Institute for Advanced Research
Subject :  Physics/Astrophysics/Cosmology and Extra-Galactic Astrophysics

Sciences of the Universe/Astrophysics/Cosmology and Extra-Galactic Astrophysics

Sciences of the Universe/Astrophysics
Keyword(s): Inference – inverse problems – astronomy
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Submitted on: Friday, 3 October 2008 10:15:04
Updated on: Sunday, 4 March 2012 00:09:51