X-ray Hardness

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

Hardness Ratios for 3C 279, Obsid 2971

Aimpoint HR₁ = (H-M)/(H+M) HR₂ = (M-S)/(M+S) HR₃ = (H-S)/(H+S)
ACIS-S 0.100 0.132 0.229
ACIS-I 0.154 0.400 0.522

Quantiles for 3C 279, Obsid 2971

Aimpoint Quantiles 25 % 25 % Error 50 % 50 % Error 75 % 75 % Error
ACIS-S keV 0.898 0.000 1.321 0.007 2.008 0.005

Q-norm 0.078 0.000 0.133 0.001 0.222 0.001
ACIS-I keV 1.073 0.003 1.482 0.000 2.387 0.009

Q-norm 0.100 0.000 0.153 0.000 0.271 0.001

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Hardness Ratios for 3C 279, Obsid 2971
Aimpoint	HR₁ = (H-M)/(H+M)	HR₂ = (M-S)/(M+S)	HR₃ = (H-S)/(H+S)
ACIS-S	0.100	0.132	0.229
ACIS-I	0.154	0.400	0.522

Quantiles for 3C 279, Obsid 2971
Aimpoint	Quantiles	25 %	25 % Error	50 %	50 % Error	75 %	75 % Error
ACIS-S	keV	0.898	0.000	1.321	0.007	2.008	0.005
ACIS-S	Q-norm	0.078	0.000	0.133	0.001	0.222	0.001
ACIS-I	keV	1.073	0.003	1.482	0.000	2.387	0.009
ACIS-I	Q-norm	0.100	0.000	0.153	0.000	0.271	0.001