How to handle calibration uncertainties in high-energy astrophysics

Statistics – Applications

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

1

Scientific paper

Unlike statistical errors, whose importance has been well established in astronomical applications, uncertainties in instrument calibration are generally ignored. Despite wide recognition that uncertainties in calibration can cause large systematic errors, robust and principled methods to account for them have not been developed, and consequently there is no mechanism by which they can be incorporated into standard astronomical data analysis. Here we present a framework where they can be encoded such that they can be brought within the scope of analysis. We describe this framework, which is based on a modified MCMC algorithm, and propose a format standard derived from experience with effective area measurements of the ACIS-S detector on Chandra that can be applied to any instrument or method of codifying systematic errors. Calibration uncertainties can then be propagated into model parameter estimates to produce error bars that include systematic error information.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

How to handle calibration uncertainties in high-energy astrophysics does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with How to handle calibration uncertainties in high-energy astrophysics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and How to handle calibration uncertainties in high-energy astrophysics will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-793523

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.