Absolute flux G21.5-09 source region – circle radius 2.7 arcmin Best fit po x phabs model:  = 1.86 ± 0.04 Nh = 1.91 ± 0.04 x 10 22 cm -2 Flux (2-10 keV)

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Presentation transcript:

Absolute flux G source region – circle radius 2.7 arcmin Best fit po x phabs model:  = 1.86 ± 0.04 Nh = 1.91 ± 0.04 x cm -2 Flux (2-10 keV) = 5.1 x ergs cm -2 s -1 Ginga:  = 1.88, Nh = 1.3 x cm -2 Flux (2-10 keV) = 5.2 x ergs cm -2 s -1 EXOSAT:  = , Nh = 1.08 – 1.83 x cm -2 Flux (2-10 keV) = 6.5 x ergs cm -2 s -1

Cross-correlation with pn data Best fit po x phabs model:  = 2.06 ± 0.03 Nh = 2.08 ± 0.04 x cm -2 Flux (2-10 keV) = 7.6 x ergs cm -2 s -1 (flux 50% greater) Light curve shows 30 ks available but calculated exposure = 10 ks?

MS source region – circle radius 34'' Best fit (2-10 keV) po x phabs model: MOS1  = 2.50 ± 0.07 Flux (2-10 keV) = 3.1 x ergs cm -2 s -1 PN  = 2.62 ± 0.05 Flux (2-10 keV) = 3.2 x ergs cm -2 s -1  2-10 keV flux agrees to within 3%

MOS Flux ( keV) = 6.0x ergs cm -2 s -1 PN Flux ( keV) = 7.0 x ergs cm -2 s -1 (17% difference)