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Figure 1:
Temperature structure against Rosseland optical mean depth for the hydrostatic density structure produced from combining the subsonic TLUSTY velocity structure with the supersonic CMFGEN velocity structure, such that the velocity and velocity gradient are constant. The above example is for the B0.5 Ia star HD 185859 (
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Figure 2: Overall CMFGEN fit to the optical spectrum of B0-B5 supergiants (4050-4250 Å). The solid black line is the observed spectrum and the red line denotes the CMFGEN model fit. |
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Figure 3: Overall CMFGEN fit to the optical spectrum of B0-B5 supergiants (4200-4450 Å). The solid black line is the observed spectrum and the red line denotes the CMFGEN model fit. |
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Figure 4: Overall CMFGEN fit to the optical spectra of B0-B5 supergiants (4450-4650 Å). The solid black line is the observed spectrum and the red line denotes the CMFGEN model fit. |
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Figure 5:
The Galactic B supergiant
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Figure 6:
The Galactic B supergiant
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Figure 7:
Example of a TLUSTY log g fit to H |
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Figure 8:
Position of the sample of Galactic B supergiants on the Hertzsprung-Russell diagram, along with other Galactic B supergiants Crowther et al. (2006), SMC B supergiants Trundle et al. (2004); Trundle & Lennon (2005) and Galactic O stars Repolust et al. (2004). Evolutionary tracks are taken from Maeder & Meynet (2001) and imply 15 |
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Figure 9: Comparison of evolutionary and spectroscopically-derived stellar masses for the sample of B supergiants. The dotted line indicates 1:1 correspondance. |
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Figure 10:
Comparison of
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Figure 11:
Comparison of the relative strengths of the N and C lines in |
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Figure 12:
Examples of CMFGEN fits to H |
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Figure 13: Comparison of CMFGEN derived mass loss rates with theoretical mass loss rates predicted by the Vink et al. (2000) mass loss prescription. The dotted line indicates 1:1 correspondance. |
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Figure 14:
Comparison of CMFGEN derived |
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Figure 15: The wind-luminosity momentum relation for OBA stars. Note the dependence of the WLR on spectral type and metallicity. The theoretical WLR predicted by Vink et al. (2000) is calculated for our sample of Galactic B supergiants and is represented by the orange line. |
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Figure 16:
CMFGEN model fit to the IUE spectrum of HD 14818 (B2 Ia), focusing on the UV silicon
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Figure 17:
CMFGEN fit to the IUE spectrum to the N V, C IV, Si IV, Al III and C II wind resonance lines of HD 190603 (B1.5 Ia+). Note that a good fit to H |
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Figure 18:
CMFGEN fit to the IUE spectrum to the N V, C IV, Si IV, Al III and C II wind resonance lines of HD 14818 (B2 Ia). Even though the fit to H |
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Figure 19:
CMFGEN fit to the IUE spectrum to the N V, C IV, Si IV, Al III and C II wind resonance lines of HD 53138 (B3 Ia). Although a good fit has been made to H |
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Figure 20:
Comparison of UV wind resonance lines of HD 192660 for models with |
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Figure 21:
Comparison of UV wind resonance lines of HD 164353 for models with |
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Figure 22:
CMFGEN predicted ionisation structure at different
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Figure A.1:
CMFGEN model fits (4050-4250 Å) to the optical spectra of 10 B Ia supergiants, with the
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Figure A.2:
CMFGEN model fits (4250-4450 Å) to the optical spectra of 10 B Ia supergiants, with the
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Figure A.3:
CMFGEN model fits (4450-4650 Å) to the optical spectra of 10 B Ia supergiants, with the
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Figure A.4:
CMFGEN model fits (4050-4250 Å) to the optical spectra of 10 B Ib supergiants, with the
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Figure A.5:
CMFGEN model fits (4250-4450 Å) to the optical spectra of 10 B Ib supergiants, with the
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Figure A.6:
CMFGEN model fits (4450-4650 Å) to the optical spectra of 10 B Ib supergiants, with the
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Figure A.7:
TLUSTY model fits to the H |
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Figure A.8:
TLUSTY model fits to the H |
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Figure A.9: CMFGEN model fit to the IUE spectra of 10 B0-B5 supergiants (1230-1480 Å). The solid red line represents the model fits whereas the solid black line is the IUE spectrum. |
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Figure A.10: CMFGEN model fit to the IUE spectra of 10 B0-B5 supergiants (1480-1680 Å). The solid red line represents the model fits whereas the solid black line is the IUE spectrum. |
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Figure A.11: CMFGEN model fit to the IUE spectra of 10 B0-B5 supergiants (1680-1880 Å). The solid red line represents the model fits whereas the solid black line is the IUE spectrum. |
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