# IACHEC Cross-Calibration of Chandra, NuSTAR, Swift, Suzaku, and XMM-Newton with 3C 273 and PKS 2155-304

@article{Madsen2016IACHECCO,
title={IACHEC Cross-Calibration of Chandra, NuSTAR, Swift, Suzaku, and XMM-Newton with 3C 273 and PKS 2155-304},
author={Kristin K. Madsen and A P Beardmore and Karl Forster and Matteo Guainazzi and Herman L. Marshall and Eric D. Miller and Kim L Page and Martin Stuhlinge},
journal={arXiv: Instrumentation and Methods for Astrophysics},
year={2016}
}
On behalf of the International Astronomical Consortium for High Energy Calibration (IACHEC), we present results from the cross-calibration campaigns in 2012 on 3C 273 and in 2013 on PKS 2155-304 between the then active X-ray observatories Chandra, NuSTAR, Suzaku, Swift and XMM-Newton. We compare measured fluxes between instrument pairs in two energy bands, 1-5 keV and 3-7 keV and calculate an average cross-normalization constant for each energy range. We review known cross-calibration features…
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