X-ray Hardness

View complete listing of X-Atlas Spectral Metrics (Hardness, Quantiles).


Hardness Ratios for NGC 3783, Obsid 373
Aimpoint HR1 = (H-M)/(H+M) HR2 = (M-S)/(M+S) HR3 = (H-S)/(H+S)
ACIS-S 0.369 0.131 0.477
ACIS-I 0.408 0.451 0.725
Quantiles for NGC 3783, Obsid 373
Aimpoint Quantiles 25 % 25 % Error 50 % 50 % Error 75 % 75 % Error
ACIS-S keV 1.059 0.000 1.628 0.004 2.840 0.008
Q-norm 0.099 0.000 0.172 0.001 0.330 0.001
ACIS-I keV 1.278 0.000 1.789 0.003 3.249 0.008
Q-norm 0.127 0.000 0.193 0.000 0.383 0.001


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