STEP Workshop 2007: Schedule
STEP Workshop Schedule Travel to JPL Accommodation Participants


Monday 20th August

STEP DAY 1 : Shear measurement methods

Welcome and Introduction: 9.00 - 10.00

Model fitting methods: 10.00 - 12.00

Shape estimation with sums of Gaussians

Lisa Voigt

20 mins

Bayesian shape measurement for weak lensing

Tom Kitching

20 mins

Fitting methods with direct convolution for shear measurements

Marina Shmakova

20 mins

Testing EGL BJ02

Reiko Nakajima

20 mins

General Features of Fitting Methods

Stephane Paulin

20 mins

Discussion: 12.00 - 1.00. Is model fitting the way forward?
Lead by Sarah Bridle

  • The pros and cons of model fitting
  • PSF and galaxy models
  • Computational speed
  • Bayesian vs frequentist
  • Similarities and differences between the presented methods

Lunch: 1.00 - 2.00

Shapelet methods : 2.00 - 3.45

Update on REGLENS

Rachel Mandelbaum

15 mins

Shapelets on spaceSTEP and on CFHTLS data

Joel Berge

25 mins

OSU shapelet pipeline

Mandeep Gill

10 mins

Leiden update

Konrad Kuijken

10 mins

Coffee Break: 3.45 - 4.15

Discussion: 4.15 - 5.15. Are shapelets the way forward?
Lead by Richard Massey

  • The pros and cons of shapelets
  • Similarities and differences between the presented methods
  • When to stop fitting shapelet coefficients

Evening meal in "Old" town Pasadena


Tuesday 21th August

STEP DAY 2 : SpaceSTEP 

STEP3 and beyond: 9.30 - 11.30

Summary of STEP3 results

Catherine Heymans

20 mins

An indepth look at the magnitude dependent bias of KSB with STEP2 and STEP3

Tim Schrabback

30 mins

SNAP Q simulations: ground vs space

Dave Johnston

20 mins

Effects of mirror size on space-based data

Jessica Ford

20 mins

Discussion: 11.30 - 12.30. STEP3
Lead by Gary Bernstein

  • What does the DE community want to know from the STEP project?
  • Can we answer those questions by supplementing STEP3 with rotated galaxy images?
  • Do these questions need to be answered with all methods?

Lunch: 12.30 - 1.30

Discussion: 1.30 - 2.30. STEP3 continued
Lead by Jason Rhodes

  • Agree a course of action
  • Do we want new simulations?
  • Who is participating?
  • Are there any more ground/space data sets for a comparison study?

Coffee Break: 2.30 - 3.00

ACS Science: 3.00 - 5.00

Introduction to the problems associated with the weak lensing analysis of ACS data, Tim Schrabback.

A comparison of weak lensing measurements on ground and space based COSMOS data, Mansi Kasliwal. (30 mins)

A comparison of weak lensing measurements on ground and space based A901 data, Marco Hetterscheidt. (30 mins)

ACS Discussion, lead by Tim Schrabback.


Wednesday 22th August

STEP DAY 3: Future STEPs

STEP 4 Konrad Kuijken 9.30 -10.00

Discussion: 10.30 - 12.30. The future of STEP
Lead by Sarah Bridle and Catherine Heymans

Introduction to the Pascal Challenge Sarah Bridle - the outcome of which was GREAT08

  • summary, comparing and contrasting the different methods under development
  • are we any closer to meeting the needs of the next generation of surveys?
  • the pros and cons of working in the large STEP collaboration
  • what steps need to be taken to meet SNAP/LSST requirements?
  • developing STEP4 - who is interested?
  • ideas for future projects

Lunch: 12.30 - 1.30

The afternoon free is free with an optional first-come-first-serve JPL tour or a trip to Griffith Park and Hollywood?


Thursday 23rd August

WL From Space DAY 1: Future projects and PSFs

Setting the Stage: Future and current ground-based surveys: 9:30-10:30

Elisabetta Semboloni

CFHTLS

10 mins

Konrad Kuijken

KIDS

10 mins

Will High

Panstarrs

10 mins

Sarah Bridle

DES

10 mins

Gary Bernstein

LSST

10 mins

Masahiro Takada

Subaru

10 mins

Introduction to future space-based surveys: 10:30-12:30

Jason Rhodes

Political Overview

15 mins

Gary Bernstein

SNAP

20 mins

Doug Clowe

DESTINY

20 mins

Leonidas Moustakas

OMEGA and Strong Lensing

30 mins

Lunch: 12.30 - 1.30

Cosmological Parameters: 1.30 -2:45

Dark Energy Forecasting

Gary Bernstein

30 + 15 mins

Complementarity of weak lensing with other probes

Lindsay King

20 + 10 mins

Coffee Break: 2:45 - 3.15

Pixels and PSFs: 3.15 - 5.15

Michael Seiffert

Color Dependent PSF Calibration

20+ 5 mins

Will High

Pixel size

20 + 5 mins

Haakon Dahle

PSF Stability and Modeling

20 + 5 mins

Discussion

 

 

 

 

 

Evening trip to see Beckham and the LA Galaxies (photos courtesy of Tim Schrabback)


Friday 24th August

WL From Space DAY 2: Detectors and Science Topics

Detectors: 9.30 - 12.15

Shouleh Nizkad

CCDs

30 + 10 mins

Suresh Seshadri/Roger Smith

NIR

30 + 10 mins

Mithu Pain

Other choices

30 + 10 mins

Bahram Mobasher

WFC3

20 + 10 mins

Wiki Notes

Lunch: 12.15 - 1.15

WL From Space: Special Lensing Topics: 1.15 - 3.30

Photometric Redshifts

Bahram Mobasher

20 + 10 mins

SpARCS: cluster finding at 1 < z < 2

Gillian Wilson

20 + 5 mins

Clusters

Dave Johnston

20 + 5 mins

Flexion

Richard Massey

20 + 5 mins

Concluding discussion


STEP Workshop at JPL organised by:
Jason Rhodes: jrhodes[at]mail.jpl.nasa.gov
Catherine Heymans: heymans[at]physics.ubc.ca