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Components of the MOS RMF





RMF is characterised by 13 components. Each component is defined at 49 energies.



We inspect the variation of 6 components versus energy, to identify discontinuities at the absorption edges or Orsay beam limits.
Paul Bennie pbe@star.le.ac.uk Friday, 16 February 2001

XMM EPIC MOS


The RMF Components



Gaussian normalisation.



Gaussian centroid.



Gaussian sigma.



Surface loss alpha parameter.



Surface loss beta parameter.



Red tail sigma expansion factor.



Shelf normalisation



Low energy Lorentzian normalisation.



Low energy Lorentzian sigma.



Fluorescence normalisation.



Fluorescence sigma.



Escape-peak normalisation.



Escape-peak sigma.
Paul Bennie pbe@star.le.ac.uk Friday, 16 February 2001

XMM EPIC MOS


FWHM parameter

XMM EPIC MOS

Paul Bennie pbe@star.le.ac.uk Friday, 16 February 2001


Surface Loss Alpha Parameter

XMM EPIC MOS

Paul Bennie pbe@star.le.ac.uk Friday, 16 February 2001


Surface Loss Beta Parameter

XMM EPIC MOS

Paul Bennie pbe@star.le.ac.uk Friday, 16 February 2001


Red Tail Expansion Parameter

XMM EPIC MOS

Paul Bennie pbe@star.le.ac.uk Friday, 16 February 2001


Low Energy Lorentzian Normalisation

XMM EPIC MOS

Paul Bennie pbe@star.le.ac.uk Friday, 16 February 2001


Low Energy Lorentzian Sigma

XMM EPIC MOS

Paul Bennie pbe@star.le.ac.uk Friday, 16 February 2001


Recommendations







The O-edge isn't well sampled in the RMF. We should utilise the Orsay data at 160 distinct energies (currently using only 49). Known deficiencies in the purity of the Orsay beam (at the SACO high end) may have migrated into the RMF parameters ?

XMM EPIC MOS

Paul Bennie pbe@star.le.ac.uk Friday, 16 February 2001