X-ray Hardness

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

Hardness Ratios for NGC 4945, Obsid 4899

Aimpoint HR₁ = (H-M)/(H+M) HR₂ = (M-S)/(M+S) HR₃ = (H-S)/(H+S)
ACIS-S 0.861 -0.653 0.475
ACIS-I 0.904 -0.441 0.770

Quantiles for NGC 4945, Obsid 4899

Aimpoint Quantiles 25 % 25 % Error 50 % 50 % Error 75 % 75 % Error
ACIS-S keV 0.913 0.026 3.774 0.075 5.687 0.107

Q-norm 0.080 0.003 0.451 0.010 0.700 0.014
ACIS-I keV 2.911 0.136 4.460 0.060 6.271 0.025

Q-norm 0.339 0.018 0.540 0.008 0.775 0.003

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Hardness Ratios for NGC 4945, Obsid 4899
Aimpoint	HR₁ = (H-M)/(H+M)	HR₂ = (M-S)/(M+S)	HR₃ = (H-S)/(H+S)
ACIS-S	0.861	-0.653	0.475
ACIS-I	0.904	-0.441	0.770

Quantiles for NGC 4945, Obsid 4899
Aimpoint	Quantiles	25 %	25 % Error	50 %	50 % Error	75 %	75 % Error
ACIS-S	keV	0.913	0.026	3.774	0.075	5.687	0.107
ACIS-S	Q-norm	0.080	0.003	0.451	0.010	0.700	0.014
ACIS-I	keV	2.911	0.136	4.460	0.060	6.271	0.025
ACIS-I	Q-norm	0.339	0.018	0.540	0.008	0.775	0.003