Temporal &Spatial Dependency of the MOS RMF

Transcription

1 Temporal &Spatial Dependency of the RMF 1ES

2 1 Thin filter 0447

3 2 Thin filter

4 1ES kev images Good spectra clean images Bad spectra bright patch - Able to do spectral analysis of on- and off- patch regions

5 1 Rev375 1 Rev375 1 Rev447 2 Rev447 patch non-patch patch non-patch

6 1 11 obs Only 0447 lies on 1 Boresight 1 Boresight

7 2 12 obs Only 0433 & 0447 lie on 2 Boresight 2 Boresight

8 - Investigate possible photon damage at boresights - Stacking of all-pattern, all-energy images from all imaging mode observations 1 (CCD1) 3249 Event Files Events 2 (CCD1) 3223 Event Files Events

9 - Investigate possible photon damage at boresights - Comparison of boresight positions (pn/rgs prime) with stacked images (zoom) RGS prime 309,295 1 pn prime 315,291 RGS prime 299,299 2 pn prime 303,

10 Searching for patch in other datasets/objects 0283 Thin kev kev kev kev N132D Mos Med 0771 Thin 0828 Thin No Thin filter, On-Patch Observations

11 0283 Thin 0606 Med kev kev kev kev N132D Mos Thin 0828 Thin No Thin filter, On-Patch Observations

12 kev kev kev kev N132D M1 - Rev Medium filter - On-Patch M1 smoothed M2 M2 smoothed

13 kev kev kev kev 0474 N132D Mos1 - Medium filter

14 kev kev kev kev 0474 N132D Mos2 - Medium filter

15 - No spatial evidence for patch found in N132D (larger remnant - more complex, spatially and spectrally - no thin-filter, on-boresight observations) - Other Objects? - Coma Many observations All Medium Filter - Tycho 1 observation Medium filter - Kepler 1 observation Thick filter - (No such features [spectral enhancements, spatial patch ] seen in pn analysis - remnant however sometimes on CCD gap, or non-thin filter used)

16 1ES Proposed On- Boresight Raster Observation - Performed in Revs 894/900 4 observations: a - 900b1 & 900b2 (flare-damaged) - 900c

17 0447

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20 &447

21 kev kev - Models (continuum + multi-gaussian) fitted to spectra in narrow energy bands - Fluxes calculated and compared (dotted lines show ±10% variation) kev - On-Axis observations (433, 447, 894, 900) show marked departures from mean

22 - Zoom of region (all on-axis)

23 kev - At higher energies, flux is very constant kev kev - Across whole energy band, flux is quite well conserved

24 1 in timing mode kev RAWX/Y images M1(raw/smoothed) M2(raw/smoothed) from Revs. 433, 447, 894, 900(a,b1/2,c) - 2 patch is compact, stationary, distinct - 1 patch is fuzzier, not so distinct, more diffuse - Are able to compare patch and nonpatch spectra,as before

25 1 Rev375 1 Rev375 1 Rev447 2 Rev447 patch non-patch patch non-patch

26 M1 On-patch - peak level (?) reached by rev little evolution thereafter (off-axis)

27 M1 Off-patch - low-moderate effect at rev moderate evolution thereafter (off-axis)

28 M2 On-patch - moderate effect at rev 433/447 (lower than M1) - moderate evolution (to peak level?) (off-axis)

29 M2 Off-patch - low (zero) effect at rev 433/447 - moderate evolution thereafter 375 (off-axis)

30 On-patch Off-patch M1 375 (off-axis) M2 375 (off-axis)

31 On-patch Off-patch M1 447 M2 447

32 On-patch Off-patch M1 894 M2 894

33 On-patch Off-patch M1 900a M2 900a

34 On-patch Off-patch M1 900c M2 900c

35 Spatial Analysis of Patch - Mosaic all good off-axis sky (X/Y) images to obtain kev images of non-patch remnant - Using knowledge of remnant detector position and observation position angle, rotate and flip this image to correct RAWX/RAWY position & orientation for each bad on-axis pointing - Subtract rotated/flipped image from each bad on-axis RAWX/RAWY image (correcting for relative exposures) to obtain images of the remainder the patch

36 - M1 patch is bright, and quite large already at rev Outer regions become larger and even brighter at later times

37 - M2 patch is not as bright as M1, and is initially compact - Outer regions become effected at later times

38 Mosaics (raw & smoothed) of patch images for 1

39 Mosaics (raw & smoothed) of patch images for 2

40 - Patch is only visible when remnant illuminates the particular area of detector - 1ES0102 acts like a torchlight Final correction is made for this

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43 New Boresights? 2 1 Obvious places that are close, equidistant from pn/rgs boresights (and by pn-rgs boresight offset) and with relatively little photon impact

44 Discussion: Dealing with The Patch? - New Boresight(s)? - Spatio-temporal RMF? - Correct on photon-by-photon basis?

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