3x3 binning pattern experiment

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Richard (Tao) Song , Jenny Carter, Steve Sembay University of Leicester. 3x3 binning pattern experiment. Aims. See how different pattern distributions for 3x3 binned event list is from ‘normal’ event list Check the normal event list pattern distributions against the CCF - PowerPoint PPT Presentation

Transcript of 3x3 binning pattern experiment

XMMEPICMOS

Jenny Carter (jac48@star.le.ac.uk)EPIC Calibration

Mallorca, 5th-7th Nov. 2007

3x3 binning pattern experiment

Richard (Tao) Song , Jenny Carter, Steve Sembay

University of Leicester

XMMEPICMOS

Jenny Carter (jac48@star.le.ac.uk)EPIC Calibration

Mallorca, 5th-7th Nov. 2007

Aims• See how different pattern distributions for 3x3 binned event list is

from ‘normal’ event list• Check the normal event list pattern distributions against the CCF• Create pattern distribution fractions for the 3x3 mode• Eventually create a nice QE CCF for the 3x3 binning mode• Use recent observation of Vela SNR:

• Normal:• DATE-OBS: 2007-05-01T19:03:57• LIVETIME : 47.8 ks• NAXIS2 : 1139927

• 3x3 binning: • DATE-OBS: 2007-05-02T09:00:01• LIVETIME : 31.4 ks• NAXIS2 : 3057523

XMMEPICMOS

Jenny Carter (jac48@star.le.ac.uk)EPIC Calibration

Mallorca, 5th-7th Nov. 2007

Selection region for analysis

Excludingbright col.

here

XMMEPICMOS

Jenny Carter (jac48@star.le.ac.uk)EPIC Calibration

Mallorca, 5th-7th Nov. 2007

Comparing normal event list to CCF pattern distribution - PHA

XMMEPICMOS

Jenny Carter (jac48@star.le.ac.uk)EPIC Calibration

Mallorca, 5th-7th Nov. 2007

Comparing normal event list to CCF pattern distribution - PI

XMMEPICMOS

Jenny Carter (jac48@star.le.ac.uk)EPIC Calibration

Mallorca, 5th-7th Nov. 2007

Fitting

• Use logarithmic binning and spline fitting

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Jenny Carter (jac48@star.le.ac.uk)EPIC Calibration

Mallorca, 5th-7th Nov. 2007

PHAPHA – 3x3

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Jenny Carter (jac48@star.le.ac.uk)EPIC Calibration

Mallorca, 5th-7th Nov. 2007

PI – 3x3

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Jenny Carter (jac48@star.le.ac.uk)EPIC Calibration

Mallorca, 5th-7th Nov. 2007

PHA

PI

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Jenny Carter (jac48@star.le.ac.uk)EPIC Calibration

Mallorca, 5th-7th Nov. 2007

Scaling CCF

• Use ratio 3x3 binning to normal and use this scale factor to scale the CCF• File: EMOS1_QUANTUMEFF_0017.CCF

• Extensions FRACTION_CHANNEL, FRACTION_ENERGY

Red is the 3x3 fraction distribution, green is the normal binning distribution

XMMEPICMOS

Jenny Carter (jac48@star.le.ac.uk)EPIC Calibration

Mallorca, 5th-7th Nov. 2007

XMMEPICMOS

Jenny Carter (jac48@star.le.ac.uk)EPIC Calibration

Mallorca, 5th-7th Nov. 2007

XMMEPICMOS

Jenny Carter (jac48@star.le.ac.uk)EPIC Calibration

Mallorca, 5th-7th Nov. 2007

XMMEPICMOS

Jenny Carter (jac48@star.le.ac.uk)EPIC Calibration

Mallorca, 5th-7th Nov. 2007

Future work and conclusions

• Check gain etc. of the 3x3 mode

• Look at spectral differences between normal and 3x3 binning

• Apply background subtraction to current analysis

• Look at MOS2

• Compare with any more observations

• Apply the ratio found to the current CCF, give to RS….

• …create a new 3x3 QE CCF

XMMEPICMOS

Jenny Carter (jac48@star.le.ac.uk)EPIC Calibration

Mallorca, 5th-7th Nov. 2007

XMMEPICMOS

Jenny Carter (jac48@star.le.ac.uk)EPIC Calibration

Mallorca, 5th-7th Nov. 2007

Extra slides

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Jenny Carter (jac48@star.le.ac.uk)EPIC Calibration

Mallorca, 5th-7th Nov. 2007

XMMEPICMOS

Jenny Carter (jac48@star.le.ac.uk)EPIC Calibration

Mallorca, 5th-7th Nov. 2007

XMMEPICMOS

Jenny Carter (jac48@star.le.ac.uk)EPIC Calibration

Mallorca, 5th-7th Nov. 2007