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specgroup (specgroup-1.7.1) [xmmsas_20211130_0941-20.0.0]

Minimum ratio above background

Defines groups where each one contains a minimum ratio of the source signal to the background counts:

  $\displaystyle ratio = ( source - background * areanorm ) / ( background * areanorm )
$ (2)



XMM-Newton SOC -- 2021-11-30