X-ray Hardness

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

Hardness Ratios for H1821+643, Obsid 2311

Aimpoint HR₁ = (H-M)/(H+M) HR₂ = (M-S)/(M+S) HR₃ = (H-S)/(H+S)
ACIS-S -0.045 -0.070 -0.115
ACIS-I 0.014 0.273 0.285

Quantiles for H1821+643, Obsid 2311

Aimpoint Quantiles 25 % 25 % Error 50 % 50 % Error 75 % 75 % Error
ACIS-S keV 0.737 7.263 1.088 0.000 1.657 0.004

Q-norm 0.057 0.943 0.102 0.000 0.176 0.001
ACIS-I keV 0.942 0.007 1.321 0.005 1.891 0.006

Q-norm 0.083 0.001 0.133 0.001 0.207 0.001

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Hardness Ratios for H1821+643, Obsid 2311
Aimpoint	HR₁ = (H-M)/(H+M)	HR₂ = (M-S)/(M+S)	HR₃ = (H-S)/(H+S)
ACIS-S	-0.045	-0.070	-0.115
ACIS-I	0.014	0.273	0.285

Quantiles for H1821+643, Obsid 2311
Aimpoint	Quantiles	25 %	25 % Error	50 %	50 % Error	75 %	75 % Error
ACIS-S	keV	0.737	7.263	1.088	0.000	1.657	0.004
ACIS-S	Q-norm	0.057	0.943	0.102	0.000	0.176	0.001
ACIS-I	keV	0.942	0.007	1.321	0.005	1.891	0.006
ACIS-I	Q-norm	0.083	0.001	0.133	0.001	0.207	0.001