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Figure 1:
Variation of the Na and K line profiles perturbed by He with
density
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Figure 2:
Variation with temperatures of the K-He and K-H2modulated dipole at 3000, 2000, 1000, and 500 K (top to bottom), and
the difference of upper and lower state potentials for the resonance
lines. For K-H2, difference potentials ![]() ![]() |
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Figure 3:
Variation with temperature of the Na and K line profiles
perturbed by H2 for the C2v (--) and
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Figure 4:
Synthetic spectra obtained with the van der Waals
approximation (dot-dashed line), and with the detailed profiles of Fig. 3 (dotted line) are compared for an effective temperature of 1000 K, surface gravity of
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