Calibration and in-orbit performance of the reflection grating spectrometer onboard XMM-Newton

Free Access

Table 11

Differences between RGS1 and RGS2 as function of signal to noise ratio per pixel.

S/N	Difference^a	Outliers^b
	width (σ_s)	(%)


6.7	1.01	0.2
36	1.09	0.3
69	1.41	3.7

Notes. Differences outside normal Poisson statistics reflect the systematic uncertainties in the effective area accuracy.

^(a)

Width of distribution of differences expressed in statistical uncertainty σ_s of the spectrum. Offsets (constant difference) are ignored.

^(b)

Percentage of pixels outside of the 3σ_s statistical uncertainty.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.