HD93129: Chandra grating spectrum

9.1687, 9.2297, 9.3143 Angstroms: Mg XI

freezing G @ 0.71
β = 0.7

MEG
Mg XI 9.1687 MEG

HEG
Mg XI 9.1687 HEG 		[9.04:9.43], λo = 9.1687, 9.2297, 9.3143
vinf=3200
β=0.7
powerlaw continuum, n=2; norm=2.05e-4
q=0
hinf=0
taustar=2.66   +/- (1.98:3.38)
      1.43:3.98 at 90% confidence
Ro=1.19   +/- (1.01:1.56)
G=0.71
φ-ratio = 147  
norm=1.62e-5 +/- (1.49e-5:1.75e-5)
rejection probability = ???% (C=413.22; N=464)
 

Here are the 68%, 90%, and 95% joint confidence limits on taustar and Ro. The filled circle represents the best-fit model, shown as the red histograms on the above plot.

Mg XI 9.1687 : joint Ro taustar constraints using MEG and HEG data

 

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last modified: 4 August 2010