X-ray Hardness

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

Hardness Ratios for SN 1987A, Obsid 1387

Aimpoint HR₁ = (H-M)/(H+M) HR₂ = (M-S)/(M+S) HR₃ = (H-S)/(H+S)
ACIS-S -0.197 -0.153 -0.339
ACIS-I -0.137 0.188 0.054

Quantiles for SN 1987A, Obsid 1387

Aimpoint Quantiles 25 % 25 % Error 50 % 50 % Error 75 % 75 % Error
ACIS-S keV 0.664 0.010 0.956 0.009 1.424 0.016

Q-norm 0.047 0.001 0.085 0.001 0.146 0.002
ACIS-I keV 0.869 0.011 1.190 0.025 1.686 0.030

Q-norm 0.074 0.001 0.116 0.003 0.180 0.004

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Hardness Ratios for SN 1987A, Obsid 1387
Aimpoint	HR₁ = (H-M)/(H+M)	HR₂ = (M-S)/(M+S)	HR₃ = (H-S)/(H+S)
ACIS-S	-0.197	-0.153	-0.339
ACIS-I	-0.137	0.188	0.054

Quantiles for SN 1987A, Obsid 1387
Aimpoint	Quantiles	25 %	25 % Error	50 %	50 % Error	75 %	75 % Error
ACIS-S	keV	0.664	0.010	0.956	0.009	1.424	0.016
ACIS-S	Q-norm	0.047	0.001	0.085	0.001	0.146	0.002
ACIS-I	keV	0.869	0.011	1.190	0.025	1.686	0.030
ACIS-I	Q-norm	0.074	0.001	0.116	0.003	0.180	0.004