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XRT update

XRT update. Yoshitomo Maeda (ISAS/JAXA), Kai-Wing Chan (GSFC/NASA) and the XRT team. Contents. Current XRT Performance No significant time evolution/degradation from the launch Updates on software/CALDB/calibration status New tools: Attitude correction ftools “aeattcor”

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XRT update

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  1. XRT update Yoshitomo Maeda (ISAS/JAXA), Kai-Wing Chan (GSFC/NASA) and the XRT team

  2. Contents • Current XRT Performance • No significant time evolution/degradation from the launch • Updates on software/CALDB/calibration status • New tools: Attitude correction ftools “aeattcor” • The cross calibration of XIS/PIN • Speed-up and general improvement on the ray-tracing code • A bug fix on large angle stray lights (> 5deg,) • Plan of their future updates • Provide a faster arf generator • More fine ray-tracing tuning

  3. Uchiyama et al. 2008 Ishisaki Attitude correction : aeattcor V1.2 Distorted image Nominal position 96 min modulation ~ 1 orbit Amplitude ~ 50 arcsec

  4. Uchiyama et al. 2008 Ishisaki Attitude correction : aeattcor V2.0 V1.2 • Suzaku has no alignment monitor onboard. • modeling the empirical correction using the very limited HK or orbit data. • The solution is included in a ftools “aeattcor” Aeattcor was applied

  5. Uchiyama et al. 2008 Ishisaki Attitude correction : aeattcor < 50 c/exposure Core sharpness > 50c/exposure Counts (< 20arcsec) Counts (< 10arcsec)

  6. Uchiyama et al. 2008 Ishisaki Attitude correction : aeattcor (Absolute position accuracy) Distance from the nominal position < 55 arcsec < 25 arcsec

  7. Ishida, Suzuki, Someya 2007 Suzaku memo E.A.: Cross norm. (XIS/HXD) Crab power-law fit XIS nominal HXD nominal (3.5 arcmin off)

  8. Ishida, Suzuki, Someya 2007 Suzaku memo E.A.: Cross norm. (XIS/HXD) Only change in XIS-0 from v1.2 XIS nominal HXD nominal

  9. Ishida, Suzuki, Someya 2007 Suzaku memo E.A.: Cross norm. (XIS/HXD) We are providing the Crab index, normalization ratio to the users through the web page as a Suzaku memo. Users, who needs accurate systematic error on the effective area, incorporates the Crab normalization ratio in their spectral fit XIS nominal HXD nominal

  10. A current status of a fine tuning of the XRT response(Non-released test version) • Image (PSF/EEF) • Vignetting • EA Purpose: To provide more accurate arf generator and simulator  (Hopefully) make users free from systematic uncertainties of the XRT response

  11. SS Cyg at XISnom PSF XIS-0 Xissim 20070716 Test version Slope & Tail: Better modelled

  12. SS Cyg at XISnom PSF XIS-1 Xissim 20070716 Test version

  13. SS Cyg at XISnom PSF XIS-2 Xissim 20070716 Test version

  14. SS Cyg at XISnom PSF XIS-3 Xissim 20070716 Test version

  15. SS Cyg at XISnom EEF XIS-0 Xissim 20070716 Test version

  16. SS Cyg at XISnom EEF XIS-1 Xissim 20070716 Test version

  17. SS Cyg at XISnom EEF XIS-2 Xissim 20070716 Test version

  18. SS Cyg at XISnom EEF XIS-3 Xissim 20070716 Test version

  19. Xissim 20070716 Vignetting:XIS-0 Test version 4.5 keV 8.0 keV ・Crab 2005 Fall ・Crab 2006 Fall

  20. Xissim 20070716 Vignetting:XIS-1 Test version 4.5 keV 8.0 keV ・Crab 2005 Fall ・Crab 2006 Fall

  21. Xissim 20070716 Vignetting:XIS-2 Test version 4.5 keV 8.0 keV ・Crab 2005 Fall ・Crab 2006 Fall

  22. Xissim 20070716 Vignetting:XIS-3 Test version 4.5 keV 8.0 keV ・Crab 2005 Fall ・Crab 2006 Fall

  23. Data: Crab Response: Test version Model: G=2.1 On-Going Effective Area Long solu. For FL Short solu. For FL Problem: Crab’ slope becomes flatter (~2.0) Once solved, update responses to GO/SWG.

  24. A current status of a fine tuning of the XRT response(test version) • Future updated components • teldef • Optical Axis • Ray-tracing library/reference files • Foils geometry at every QT • Focal length, Optical Axis • Scattering (Au surface)  Vignetting, PSF/EEF, Effective area Improvement Release once finished Close to be finished On-going finished

  25. Summary • Continue to update XISSIM/XISSIMARFGEN beyond version 20070716 • Current Status • Update version of xissim, xissimarfgen: all 2007-07-16 versions • Attitude correction tool “aeattcor” was released and was incorporated in the v 2.0 processing. • Future plan • Release a faster version of the xissimarfgen: xisarfgen • Improve the calibration accuracy • Current Test Version nearly completed for • Vignetting • Work in progress • Angular Resolution (PSF/EEF) • Effective area

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