X-ray Hardness

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

Hardness Ratios for H1821+643, Obsid 2186

Aimpoint HR₁ = (H-M)/(H+M) HR₂ = (M-S)/(M+S) HR₃ = (H-S)/(H+S)
ACIS-S -0.050 -0.060 -0.109
ACIS-I 0.009 0.283 0.291

Quantiles for H1821+643, Obsid 2186

Aimpoint Quantiles 25 % 25 % Error 50 % 50 % Error 75 % 75 % Error
ACIS-S keV 0.737 0.003 1.088 0.007 1.657 0.001

Q-norm 0.057 0.000 0.102 0.001 0.176 0.000
ACIS-I keV 0.956 0.001 1.321 0.001 1.905 0.005

Q-norm 0.085 0.000 0.133 0.000 0.208 0.001

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Hardness Ratios for H1821+643, Obsid 2186
Aimpoint	HR₁ = (H-M)/(H+M)	HR₂ = (M-S)/(M+S)	HR₃ = (H-S)/(H+S)
ACIS-S	-0.050	-0.060	-0.109
ACIS-I	0.009	0.283	0.291

Quantiles for H1821+643, Obsid 2186
Aimpoint	Quantiles	25 %	25 % Error	50 %	50 % Error	75 %	75 % Error
ACIS-S	keV	0.737	0.003	1.088	0.007	1.657	0.001
ACIS-S	Q-norm	0.057	0.000	0.102	0.001	0.176	0.000
ACIS-I	keV	0.956	0.001	1.321	0.001	1.905	0.005
ACIS-I	Q-norm	0.085	0.000	0.133	0.000	0.208	0.001