XMM-Newton 1 A.Garcia, ESAC Spectral effects of PSF core excisting Madrid, 24. March 2009
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XMM-Newton
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A.Garcia, ESAC
Spectral effects
of PSF core excisting
Madrid, 24. March 2009
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1. Introduction
a) 3D PSF without pile-up b) 3D Pile-up PSF
• Goal of the project: verify that the results of spectral parameters analysis do not depend on the extraction region.
• If there is pile-up: extraction of the core. But... which is the impact?? what are the consequences??
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Method:
• Selection of a circular region and extract spectrum from all different annuli
• Spectral fitting for all the individual spectrum
• Compare results for different annuli within
•(a) full band
•(b) narrow bands
• Connection to XCAL archive:
•source and background region
•model for fitting the spectra.
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Expectations:
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Results: 3C273
Absorbed double powerlaw model
(a) 0126700301: rev.0094 (b) 0414190601: rev. 1837
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Narrow energy bands: 0.15 – 0.33 eV
(a) 0126700301 (b) 0414190601
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Narrow energy bands: 0.33 – 0.54
(a) 0126700301 (b) 0414190601
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Narrow energy bands: 0.54 – 0.85 eV
(a) 0126700301 (b) 0414190601
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Narrow energy bands: 0.54 – 0.85 eV
(a) 0126700301 (b) 0414190601
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Narrow energy bands: 0.85 – 2.0 eV
(a) 0126700301 (b) 0414190601
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Narrow energy bands: 2.0 – 4.5 eV
(a) 0126700301 (b) 0414190601
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Narrow energy bands: 4.5 – 10.0 eV
(a) 0126700301 (b) 0414190601
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RXJ 1856 0412600101
Complete band: 0.15 – 0.85 eV
Absorbed single black body model
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RXJ 1856 0412600101
narrow band: 0.15-0.33 eV
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RXJ 1856 0412600101
narrow band: 0.33 - 0.54 eV
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RXJ 1856 0412600101
narrow band: 0.54 - 0.85 eV
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1H0414+009 0161160101
• Extraction for different outer radios
MOS1 region PN region
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Results: 3C2731H0414+009: 0161160101 complet band1H0414+009: 0161160101 complet band
(a) outer radio: 800(a) outer radio: 800 (b) outer radio:1500(b) outer radio:1500
Absorbed powerlaw model
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1H0414+009: 0161160101 1H0414+009: 0161160101 narrow energy band: 0.15-0.33 eVnarrow energy band: 0.15-0.33 eV
(a) outer radio: 800(a) outer radio: 800 (b) outer (b) outer radio:1500radio:1500
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1H0414+009: 0161160101 1H0414+009: 0161160101 narrow energy band: 0.33-0.54 eVnarrow energy band: 0.33-0.54 eV
(a) outer radio: 800(a) outer radio: 800 (b) outer radio:1500(b) outer radio:1500
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1H0414+009: 0161160101 1H0414+009: 0161160101 narrow energy band: 0.54-0.85 eVnarrow energy band: 0.54-0.85 eV
(a) outer radio: 800(a) outer radio: 800 (b) outer radio:1500(b) outer radio:1500
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1H0414+009: 0161160101 1H0414+009: 0161160101 narrow energy band: 0.85-2.0 eVnarrow energy band: 0.85-2.0 eV
(a) outer radio: 800(a) outer radio: 800 (b) outer radio:1500(b) outer radio:1500
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1H0414+009: 0161160101 1H0414+009: 0161160101 narrow energy band: 2.0-4.5 eVnarrow energy band: 2.0-4.5 eV
(a) outer radio: 800(a) outer radio: 800 (b) outer radio:1500(b) outer radio:1500
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Conclusions
• We see changes of spectral parameters dependent on the source region definition.
• Interpretation:
• Reasons:
???
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Outlook
(a) Current model (b) New 2-D PSF model
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