X-ray Hardness

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


Hardness Ratios for 3C273, Obsid 4431
Aimpoint HR1 = (H-M)/(H+M) HR2 = (M-S)/(M+S) HR3 = (H-S)/(H+S)
ACIS-S 0.008 -0.010 -0.003
ACIS-I 0.065 0.325 0.382
Quantiles for 3C273, Obsid 4431
Aimpoint Quantiles 25 % 25 % Error 50 % 50 % Error 75 % 75 % Error
ACIS-S keV 0.781 7.219 1.161 0.000 1.774 0.004
Q-norm 0.062 0.938 0.112 0.000 0.191 0.001
ACIS-I keV 0.986 0.004 1.380 0.000 2.051 0.007
Q-norm 0.089 0.000 0.140 0.000 0.227 0.001


Observation Preview Chandra Configuration for the Observation

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