X-ray Hardness

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


Hardness Ratios for 3C273, Obsid 5170
Aimpoint HR1 = (H-M)/(H+M) HR2 = (M-S)/(M+S) HR3 = (H-S)/(H+S)
ACIS-S 0.042 0.004 0.047
ACIS-I 0.099 0.336 0.422
Quantiles for 3C273, Obsid 5170
Aimpoint Quantiles 25 % 25 % Error 50 % 50 % Error 75 % 75 % Error
ACIS-S keV 0.796 0.000 1.190 0.000 1.847 0.003
Q-norm 0.064 0.000 0.116 0.000 0.201 0.000
ACIS-I keV 1.015 0.003 1.409 0.001 2.168 0.009
Q-norm 0.093 0.000 0.144 0.000 0.243 0.001


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