X-ray Hardness

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

Hardness Ratios for SN 1987A, Obsid 124

Aimpoint HR₁ = (H-M)/(H+M) HR₂ = (M-S)/(M+S) HR₃ = (H-S)/(H+S)
ACIS-S -0.281 0.099 -0.187
ACIS-I -0.214 0.364 0.164

Quantiles for SN 1987A, Obsid 124

Aimpoint Quantiles 25 % 25 % Error 50 % 50 % Error 75 % 75 % Error
ACIS-S keV 0.810 0.015 1.015 0.010 1.467 0.018

Q-norm 0.066 0.002 0.093 0.001 0.152 0.002
ACIS-I keV 0.927 0.008 1.234 0.019 1.730 0.053

Q-norm 0.081 0.001 0.121 0.002 0.186 0.007

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Hardness Ratios for SN 1987A, Obsid 124
Aimpoint	HR₁ = (H-M)/(H+M)	HR₂ = (M-S)/(M+S)	HR₃ = (H-S)/(H+S)
ACIS-S	-0.281	0.099	-0.187
ACIS-I	-0.214	0.364	0.164

Quantiles for SN 1987A, Obsid 124
Aimpoint	Quantiles	25 %	25 % Error	50 %	50 % Error	75 %	75 % Error
ACIS-S	keV	0.810	0.015	1.015	0.010	1.467	0.018
ACIS-S	Q-norm	0.066	0.002	0.093	0.001	0.152	0.002
ACIS-I	keV	0.927	0.008	1.234	0.019	1.730	0.053
ACIS-I	Q-norm	0.081	0.001	0.121	0.002	0.186	0.007