X-ray Hardness

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

Hardness Ratios for 3C 273, Obsid 1198

Aimpoint HR₁ = (H-M)/(H+M) HR₂ = (M-S)/(M+S) HR₃ = (H-S)/(H+S)
ACIS-S 0.072 -0.025 0.047
ACIS-I 0.131 0.327 0.439

Quantiles for 3C 273, Obsid 1198

Aimpoint Quantiles 25 % 25 % Error 50 % 50 % Error 75 % 75 % Error
ACIS-S keV 0.781 0.001 1.205 0.003 1.876 0.007

Q-norm 0.062 0.000 0.117 0.000 0.205 0.001
ACIS-I keV 1.015 0.000 1.438 0.001 2.329 0.008

Q-norm 0.093 0.000 0.148 0.000 0.263 0.001

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Hardness Ratios for 3C 273, Obsid 1198
Aimpoint	HR₁ = (H-M)/(H+M)	HR₂ = (M-S)/(M+S)	HR₃ = (H-S)/(H+S)
ACIS-S	0.072	-0.025	0.047
ACIS-I	0.131	0.327	0.439

Quantiles for 3C 273, Obsid 1198
Aimpoint	Quantiles	25 %	25 % Error	50 %	50 % Error	75 %	75 % Error
ACIS-S	keV	0.781	0.001	1.205	0.003	1.876	0.007
ACIS-S	Q-norm	0.062	0.000	0.117	0.000	0.205	0.001
ACIS-I	keV	1.015	0.000	1.438	0.001	2.329	0.008
ACIS-I	Q-norm	0.093	0.000	0.148	0.000	0.263	0.001