Calibration Uncertainties

1
Calibration Uncertainties Data Analysis

• Last Years Highlights
• Devised scheme for modifying Sherpa to run MCMC
• SPIE paper, Drake, Ratzlaff, Kashyap, Edgar,
  Izem, Jerius, Siemiginowska, Vikhlinin, 2006,
  Proc. Of SPIE, vol.6270, p49
• Hired new post-doc, Dr. Hyunsook Lee, of Penn
  State

• PI Vinay Kashyap
• vkashyap_at_cfa.harvard.edu
• co-Is Jeremy Drake, Aneta Siemiginowska, Alanna
  Connors, David van Dyk, Hyunsook Lee, Andreas
  Zezas, Rima Izem
• Project Summary
• Incorporate calibration errors into parameter
  estimation during X-ray data analysis. The main
  goal of this project is to provide a standard
  procedure for
• (1) describing the calibration uncertainties and
• (2) incorporating the calibration uncertainties
  into the data analysis via fitting software such
  as Xspec, Sherpa, and BLoCXS.

Applications A new standard format for storing
the calibration uncertainties of effective areas
and its use within Sherpa Adoption of the
MCMC-based method to include calibration
uncertainties within Sherpa and
Xspec Development of compression and storage
requirements for Response Matrix uncertainties.
Astronomy, Statistics, Calibration, X-ray, Data
Analysis, Sherpa, XSpec, BLoCXS
NASA AISR 2006-2009
http//hea-www.harvard.edu/AstroStat/calerr