X-ray Hardness

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

Hardness Ratios for SNR1987A, Obsid 4640

Aimpoint HR₁ = (H-M)/(H+M) HR₂ = (M-S)/(M+S) HR₃ = (H-S)/(H+S)
ACIS-S -0.477 0.013 -0.467
ACIS-I -0.424 0.248 -0.197

Quantiles for SNR1987A, Obsid 4640

Aimpoint Quantiles 25 % 25 % Error 50 % 50 % Error 75 % 75 % Error
ACIS-S keV 0.781 0.007 0.956 0.003 1.263 0.007

Q-norm 0.062 0.001 0.085 0.000 0.125 0.001
ACIS-I keV 0.869 0.002 1.059 0.007 1.394 0.008

Q-norm 0.074 0.000 0.099 0.001 0.142 0.001

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Hardness Ratios for SNR1987A, Obsid 4640
Aimpoint	HR₁ = (H-M)/(H+M)	HR₂ = (M-S)/(M+S)	HR₃ = (H-S)/(H+S)
ACIS-S	-0.477	0.013	-0.467
ACIS-I	-0.424	0.248	-0.197

Quantiles for SNR1987A, Obsid 4640
Aimpoint	Quantiles	25 %	25 % Error	50 %	50 % Error	75 %	75 % Error
ACIS-S	keV	0.781	0.007	0.956	0.003	1.263	0.007
ACIS-S	Q-norm	0.062	0.001	0.085	0.000	0.125	0.001
ACIS-I	keV	0.869	0.002	1.059	0.007	1.394	0.008
ACIS-I	Q-norm	0.074	0.000	0.099	0.001	0.142	0.001