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Does the EPIC detector efficiency change?
A Review 1. Using the Fe55 calibration source to test for individual detector efficiency evolution 2. Using 2XMM catalogue off-axis sources to test for MOS v pn relative detector efficiency evolution 3. Using bright on-axis sources to test for MOS v pn relative detector efficiency evolution

XMM EPIC MOS Wednesday, 20 July 2011

Steve Sembay (sfs5@star.le.ac.uk) BOC 29/03/11


Fe55 - after 10 years rate should be known to within ~0.5%

Text

XMM EPIC MOS Wednesday, 20 July 2011

Steve Sembay (sfs5@star.le.ac.uk) BOC 29/03/11


19 MOS FF
0080/0124700101/ 0150/0105262301/ 0310/0134540501/ 0388/0107260201/ 0407/0154150201/ 0508/0001730501/ 0572/0134522201/ 0605/0134522301/ 0668/0160362601/ 0766/0134540701/ 0857/0134540801/ 0900/0135722101/ 0942/0134540901/ 0981/0160363001/ 1072/0160363201/ 1280/0411080801/ 1478/0412580301/ 1662/0412580401/ 1848/0412580601/
XMM EPIC MOS Wednesday, 20 July 2011

16 pn FF
0080/0124700101/ 0150/0105262301/ 0310/0134540501/ 0407/0154150201/ 0508/0001730501/ 0572/0134522201/ 0605/0134522301/ 0766/0134540701/ 0857/0134540801/ 0900/0135722101/ 0981/0160363001/ 1072/0160363201/ 1280/0411080801/ 1478/0412580301/ 1662/0412580401/ 1848/0412580601/
Steve Sembay (sfs5@star.le.ac.uk) BOC 29/03/11


Closed Calibration Spectra pn (black) mos1 (red)

Rev 0080

Background Subtracted

normalized counts s 1 keV

1

0.1

1

10

0.2 0.01

1.6
10

3

0.2
XMM EPIC MOS

0.5

1

2

5

10

Energy (keV) Steve Sembay (sfs5@star.le.ac.uk) BOC 29/03/11

Wednesday, 20 July 2011


M1 on CCD1
Region used for source and background

M2 on CCD1

pn

on CCD4

Regions used for scaling background

XMM EPIC MOS Wednesday, 20 July 2011

Steve Sembay (sfs5@star.le.ac.uk) BOC 29/03/11


Source Counts as Fraction of Total Counts: M1

Pat 0-12 Pat 0

XMM EPIC MOS Wednesday, 20 July 2011

Steve Sembay (sfs5@star.le.ac.uk) BOC 29/03/11


Source Counts as Fraction of Total Counts: M2

XMM EPIC MOS Wednesday, 20 July 2011

Steve Sembay (sfs5@star.le.ac.uk) BOC 29/03/11


Source Counts as Fraction of Total Counts: M2

XMM EPIC MOS Wednesday, 20 July 2011

Steve Sembay (sfs5@star.le.ac.uk) BOC 29/03/11


Correction Factors for FWCinner exposures derived from the OOF regions in closed and cal-closed datasets = FWCouter/CCouter

XMM EPIC MOS Wednesday, 20 July 2011

Steve Sembay (sfs5@star.le.ac.uk) BOC 29/03/11


CC rate extrapolated from 1st Observation - M1

XMM EPIC MOS Wednesday, 20 July 2011

Steve Sembay (sfs5@star.le.ac.uk) BOC 29/03/11


CC rate extrapolated from 1st Observation - M2

XMM EPIC MOS Wednesday, 20 July 2011

Steve Sembay (sfs5@star.le.ac.uk) BOC 29/03/11


CC rate extrapolated from 1st Observation - pn

XMM EPIC MOS Wednesday, 20 July 2011

Steve Sembay (sfs5@star.le.ac.uk) BOC 29/03/11


XMM EPIC MOS Wednesday, 20 July 2011

Steve Sembay (sfs5@star.le.ac.uk) BOC 29/03/11


Black (Rev 0766) Red (0857)

pn

4

0766: 0.683 ± 0.004 cts/s (96.2% of total)

3

normalized counts s 1 keV

0857: 0.691 ± 0.004 cts/s (96.1% of total)
2 0 1

1

0.6
XMM EPIC MOS Wednesday, 20 July 2011

0.8

1 Energy (keV)

1.2

1.4

1.6

Steve Sembay (sfs5@star.le.ac.uk) BOC 29/03/11


Orsay test on MOS1 FW

XMM EPIC MOS Wednesday, 20 July 2011

Steve Sembay (sfs5@star.le.ac.uk) BOC 29/03/11


Orsay test on MOS1 FW ~10% drop

XMM EPIC MOS Wednesday, 20 July 2011

Steve Sembay (sfs5@star.le.ac.uk) BOC 29/03/11


Possibly close look at counts distribution could confirm this ? 0080 0572

XMM EPIC MOS Wednesday, 20 July 2011

Steve Sembay (sfs5@star.le.ac.uk) BOC 29/03/11


Study of XCAL flux distributions from 2XMM catalogue
>2' from boresight

Analysis by Kris Byckling
XMM EPIC MOS Wednesday, 20 July 2011

Steve Sembay (sfs5@star.le.ac.uk) BOC 29/03/11


Study of XCAL from bright on-axis AGN SW Mode, Medium Filter, Region 150 <= R <= 800 Sky Pixels
3c273 3c273 3c273 3c273 3c273 mcg63015 mkn478 mkn478 mkn478 3c273 3c273 3c273 akn564 3c273 3c273 3c273 n7213
XMM EPIC MOS Wednesday, 20 July 2011

0094 0095 0095 0096 0277 0301

0126700301 0126700601 0126700701 0126700801 0136550101 0029740101

0561 0005010101 0562 0005010201 0564 0005010301 0655 0835 0835 0930 1023 1299 1381 1818 0159960101 0136550801 0136550801 0206400101 0136551001 0414190101 0414190301 0605800301 All Thin Filter M1 & PN Thin

Steve Sembay (sfs5@star.le.ac.uk) BOC 29/03/11


Total Efficiency
600

6 energy bands pn 0.80-1.20 1.20-1.50 1.60-1.82 1.90-2.20 MOS1 2.30-3.50 3.50-5.50

Effective Area (cm2)

0

200

400

1
XMM EPIC MOS Wednesday, 20 July 2011

2

3 Energy (keV)

4

5

Steve Sembay (sfs5@star.le.ac.uk) BOC 29/03/11


~1.6-2% loss in dim columns in some obs post meteor strike

XMM EPIC MOS Wednesday, 20 July 2011

Steve Sembay (sfs5@star.le.ac.uk) BOC 29/03/11


XMM EPIC MOS Wednesday, 20 July 2011

Steve Sembay (sfs5@star.le.ac.uk) BOC 29/03/11


XMM EPIC MOS Wednesday, 20 July 2011

Steve Sembay (sfs5@star.le.ac.uk) BOC 29/03/11


White: M1/pn

Red: M2/pn 1.2-2.2 keV

Blue: M2/M1

SAS 11.0.0 RMF

XMM EPIC MOS Wednesday, 20 July 2011

Steve Sembay (sfs5@star.le.ac.uk) BOC 29/03/11


White: M1/pn

Red: M2/pn 1.2-2.2 keV

Blue: M2/M1

Fixed RMF

XMM EPIC MOS Wednesday, 20 July 2011

Steve Sembay (sfs5@star.le.ac.uk) BOC 29/03/11


0
XMM EPIC MOS Wednesday, 20 July 2011

500

1000

1500

Steve Sembay (sfs5@star.le.ac.uk) BOC 29/03/11


Does the EPIC detector efficiency change?

No....But....

XMM EPIC MOS Wednesday, 20 July 2011

Steve Sembay (sfs5@star.le.ac.uk) BOC 29/03/11


End

XMM EPIC MOS Wednesday, 20 July 2011

Steve Sembay (sfs5@star.le.ac.uk) BOC 29/03/11