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Cas A Supernova Remnant:
data reduction and analysis

Supernova remnants are extended sources that are very bright in the x-rays. This manual takes you through the data reduction and spectral analysis of a supernova remnant using data from two different satellites.

The data reduction is done in xselect. You will look at the observation, define regions and extract spectra.

Ftools are used to create files which can convert the spectra you extracted in terms of the pulse height of an event into the implied energy of the incoming photon.

Finally you will look at the spectra in XSPEC, and model it with various classic models.

Cas A, Rosat analysis

ASCA Cas A analysis

Appendix: Xspec command basics

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Terry & 1999-09-24