Concordance: In-flight Calibration of X-Ray Telescopes without Absolute References
Concordance: In-flight Calibration of X-Ray Telescopes without Absolute References
Abstract We describe a process for cross-calibrating the effective areas of X-ray telescopes that observe common targets. The targets are not assumed to be “standard candles” in the classic sense, in that we assume that the source fluxes have well-defined, but a priori unknown values. Using a technique developed by …