X-ray Hardness

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

Hardness Ratios for X1908+375: High N_H, Obsid 5477

Aimpoint HR₁ = (H-M)/(H+M) HR₂ = (M-S)/(M+S) HR₃ = (H-S)/(H+S)
ACIS-S 0.998 -0.311 0.996
ACIS-I 0.998 -0.321 0.997

Quantiles for X1908+375: High N_H, Obsid 5477

Aimpoint Quantiles 25 % 25 % Error 50 % 50 % Error 75 % 75 % Error
ACIS-S keV 4.431 0.009 5.205 0.009 6.037 0.010

Q-norm 0.537 0.001 0.637 0.001 0.745 0.001
ACIS-I keV 4.475 0.009 5.263 0.009 6.096 0.009

Q-norm 0.542 0.001 0.645 0.001 0.753 0.001

Observation Preview

Chandra Configuration for the Observation

Return to Search Page

X-Atlas Home

Hardness Ratios for X1908+375: High N_H, Obsid 5477
Aimpoint	HR₁ = (H-M)/(H+M)	HR₂ = (M-S)/(M+S)	HR₃ = (H-S)/(H+S)
ACIS-S	0.998	-0.311	0.996
ACIS-I	0.998	-0.321	0.997

Quantiles for X1908+375: High N_H, Obsid 5477
Aimpoint	Quantiles	25 %	25 % Error	50 %	50 % Error	75 %	75 % Error
ACIS-S	keV	4.431	0.009	5.205	0.009	6.037	0.010
ACIS-S	Q-norm	0.537	0.001	0.637	0.001	0.745	0.001
ACIS-I	keV	4.475	0.009	5.263	0.009	6.096	0.009
ACIS-I	Q-norm	0.542	0.001	0.645	0.001	0.753	0.001