QuickTime™ and a decompressor are needed to see this picture. Tom Kitching QuickTime™ and a decompressor are needed to see this picture. QuickTime™ an decompresso are needed to se QuickTime™ and a decompressor are needed to see this picture. QuickTime™ and a decompressor are needed to see this picture.
Tom Kitching. Coordination Team: THOMAS KITCHING, ADAM AMARA, SARAH BRIDLE, MANDEEP GILL, CATHERINE HEYMANS, RICHARD MASSEY, BARNABY ROWE, LISA VOIGT. Advisory Team: SREE BALAN, GARY BERNSTEIN, MATTHIAS BETHGE, FREDERIC COURBIN, MARC GENTILE, STEFAN HARMELING, - PowerPoint PPT Presentation
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QuickTime™ and a decompressor
are needed to see this picture.
Tom Kitching
QuickTime™ and a decompressor
are needed to see this picture.QuickTime™ and a decompressor
are needed to see this picture.
QuickTime™ and a decompressor
are needed to see this picture.
QuickTime™ and a decompressor
are needed to see this picture.
Coordination Team:THOMAS KITCHING, ADAM AMARA, SARAH BRIDLE, MANDEEP GILL, CATHERINE HEYMANS, RICHARD MASSEY, BARNABY ROWE, LISA VOIGT
Advisory Team:SREE BALAN, GARY BERNSTEIN, MATTHIAS BETHGE, FREDERIC COURBIN, MARC GENTILE, STEFAN HARMELING, ALAN HEAVENS, MICHAEL HIRSCH, RESHAD HOSSEINI, DONNACHA KIRK, KONRAD KUIJKEN, RACHEL MANDELBAUM, BABACK MOGHADDAM, GULDARIYA NURBAEVA, STEPHANE PAULIN-HENRIKSSON, ANAIS RASSAT, JASON RHODES, BERNHARD SCHOLKOPF, TIM SCHRABBACK, JOHN SHAWE-TAYLOR, MARINA SHMAKOVA, ANDY TAYLOR, MALIN VELANDER, LUDOVIC VAN WAERBEKE, DUGAN WITHERICK, DAVID WITTMAN
QuickTime™ and a decompressor
are needed to see this picture.
The Challenge of Measuring ShapesThe Challenge of Measuring Shapes
Typical starUsed for finding Convolution kernel
Typical galaxyused for cosmicshear analysis
Slide from S. Bridle
5/19
Cosmic LensingCosmic Lensing
Real data:gi~0.03
gi~0.2
Slide from S. Bridle
6/19
Atmosphere and TelescopeAtmosphere and Telescope
Convolution with kernel
Real data: Kernel size ~ Galaxy size
Slide from S. Bridle
7/19
PixelisationPixelisation
Sum light in each square
Real data: Pixel size ~ Kernel size /2
Slide from S. Bridle
8/19
NoiseNoise
Mostly Poisson. Some Gaussian and bad pixels.Uncertainty on total light ~ 5 per cent