HD93129: Chandra grating spectrum

Alternate wind parameters

8.421 Angstroms: Mg XII

vinf = 3200
β = 1.0

MEG
Mg XII 8.4210 MEG

HEG
Mg XII 8.4210 HEG 		[8.32:8.54], λo = 8.4210
vinf=3200
β=1
powerlaw continuum, n=2; norm=2.12e-4
q=0
hinf=0
taustar=1.35   +/- (0.61:2.77)
      (0.32:3.88) at 90% confidence
Ro=1.81   +/- (1.34:2.21)
norm=4.05e-6 +/- (3.52e-6:4.63e-6)
rejection probability = ???% (C=216.80; N=260)
 

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 plots.

Mg XII 8.4210: joint Ro taustar constraints using MEG and HEG data

 

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last modified: 30 January 2011