X-ray Hardness

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


Hardness Ratios for 3C273, Obsid 2471
Aimpoint HR1 = (H-M)/(H+M) HR2 = (M-S)/(M+S) HR3 = (H-S)/(H+S)
ACIS-S 0.053 -0.036 0.018
ACIS-I 0.112 0.313 0.410
Quantiles for 3C273, Obsid 2471
Aimpoint Quantiles 25 % 25 % Error 50 % 50 % Error 75 % 75 % Error
ACIS-S keV 0.781 0.007 1.175 0.000 1.847 0.002
Q-norm 0.062 0.001 0.114 0.000 0.201 0.000
ACIS-I keV 1.000 0.000 1.409 0.000 2.227 0.008
Q-norm 0.091 0.000 0.144 0.000 0.250 0.001


Observation Preview Chandra Configuration for the Observation

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