XCAL NuSTAR -XMM WITH COMA CLUSTER
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Transcript of XCAL NuSTAR -XMM WITH COMA CLUSTER
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Garhing, 26 March 2014
EPIC Calibration Meeting
XCAL NuSTAR-XMM WITH XCAL NuSTAR-XMM WITH COMA CLUSTERCOMA CLUSTER
FABIO GASTALDELLOINAF, IASF-Milano
NuSTAR calibration & cluster WG
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ANALYSIS ANALYSIS
Nearby cluster with a rather uniform high temperature distribution (7-9 keV). Its center observed mainly (but not only) for calibration purposes
NuSTAR analysis with nustardas1.3.1 and CALDB 20132213
XMM pn (doubles) analysis obsid 0153750101 December 2001 with SAS 12.0
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COMA NUSTAR TEMPERATURE MAP COMA NUSTAR TEMPERATURE MAP
Boxes of 2 arcmin x 2 arcmin
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COMA NUSTAR TEMPERATURE MAP COMA NUSTAR TEMPERATURE MAP
WIK+14
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DET A DET A
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DET B DET B
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COMPARISON T A-B COMPARISON T A-B
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CHECK WITH CHANDRA CHECK WITH CHANDRA
SANDERS+13
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COMPARISON WITH XMM pn COMPARISON WITH XMM pn
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COMPARISON T A 3-20 keV-pn 0.5-10 keV COMPARISON T A 3-20 keV-pn 0.5-10 keV
Mean of the ratio pn/A 0.892 with stdev
0.084
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COMPARISON T B 3-20 keV-pn 0.5-10 keV COMPARISON T B 3-20 keV-pn 0.5-10 keV
Mean of the ratio pn/B 0.893 with stdev
0.077
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COMPARISON T A-pn 3-10 keV COMPARISON T A-pn 3-10 keV
Mean of the ratio pn/A 1.185 with stdev
0.204
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COMPARISON T B-pn 3-10 keV COMPARISON T B-pn 3-10 keV
Mean of the ratio pn/B 1.156 with stdev
0.189
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COMPARISON norm A 3-20 pn 0.5-10 keVCOMPARISON norm A 3-20 pn 0.5-10 keV
Mean of the ratio A/pn 0.986 with stdev
0.137
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COMPARISON norm B 3-20 pn 0.5-10 keVCOMPARISON norm B 3-20 pn 0.5-10 keV
Mean of the ratio B/pn 0.967 with stdev
0.135
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COMPARISON norm B 3-20 pn 0.5-10 keVCOMPARISON norm B 3-20 pn 0.5-10 keV
With nustardas 1.2.0 and caldb
20130509
Mean of the ratio B/pn 1.147 with
stdev 0.158
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XMM pn BROADBAND FIT XMM pn BROADBAND FIT
105/120 10.0 ± 1.1 norm 3.1± 0.1 E-03 3-10 keV
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XMM pn BROADBAND FIT XMM pn BROADBAND FIT
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XMM pn BROADBAND FIT XMM pn BROADBAND FIT
105/120 7.5 ± 0.3 norm 3.5± 0.1 E-03 0.5-10 keV
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pn and its bkg
nustar and its bkg
COMPARISON WITH XMM pn COMPARISON WITH XMM pn
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COMPARISON WITH XMM pn COMPARISON WITH XMM pn
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SUMMARY SUMMARY
Nustar has the capabilities to constrain well hot thermal plasmas like the 8-9 keV emission in Coma
Comparison with XMM pn still stresses the problems with cluster broad band fitting (Nevalainen+10)
Future work: more XMM obervations, fit in varius energy band (2-7 keV), Fe line ratios