X-ray Hardness

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

Hardness Ratios for H1821+643, Obsid 2418

Aimpoint HR₁ = (H-M)/(H+M) HR₂ = (M-S)/(M+S) HR₃ = (H-S)/(H+S)
ACIS-S -0.040 -0.064 -0.103
ACIS-I 0.017 0.280 0.296

Quantiles for H1821+643, Obsid 2418

Aimpoint Quantiles 25 % 25 % Error 50 % 50 % Error 75 % 75 % Error
ACIS-S keV 0.737 0.004 1.102 0.001 1.672 0.006

Q-norm 0.057 0.001 0.104 0.000 0.178 0.001
ACIS-I keV 0.956 0.001 1.321 0.001 1.920 0.008

Q-norm 0.085 0.000 0.133 0.000 0.210 0.001

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Hardness Ratios for H1821+643, Obsid 2418
Aimpoint	HR₁ = (H-M)/(H+M)	HR₂ = (M-S)/(M+S)	HR₃ = (H-S)/(H+S)
ACIS-S	-0.040	-0.064	-0.103
ACIS-I	0.017	0.280	0.296

Quantiles for H1821+643, Obsid 2418
Aimpoint	Quantiles	25 %	25 % Error	50 %	50 % Error	75 %	75 % Error
ACIS-S	keV	0.737	0.004	1.102	0.001	1.672	0.006
ACIS-S	Q-norm	0.057	0.001	0.104	0.000	0.178	0.001
ACIS-I	keV	0.956	0.001	1.321	0.001	1.920	0.008
ACIS-I	Q-norm	0.085	0.000	0.133	0.000	0.210	0.001