Resonance line transfer with partial redistribution. III MG II resonance lines in solar-type stars

Details Resonance line transfer with partial redistribution. III MG II resonance lines in solar-type stars Resonance line transfer with partial redistribution. III MG II resonance lines in solar-type stars

Apr 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975apj...197..143m&link_type=abstract

Astrophysical Journal, vol. 197, Apr. 1, 1975, pt. 1, p. 143-145.

Astronomy and Astrophysics

Astrophysics

22

Astronomical Models, Brightness Temperature, Gravitational Effects, Magnesium, Radiative Transfer, Stellar Spectra, Chromosphere, Electron Energy, Limb Darkening, Metal Ions, Stellar Atmospheres

Scientific paper

We discuss the gravity dependence of the Mg II resonance lines calculated with inclusion of effects of partial redistribution in frequency. Using chromospheric models scaled from a solar model, we demonstrate the increased decoupling of the radiation temperature of the k1 feature from the minimum electron temperature in lower-gravity models. The limb darkening of the k-line in the main-sequence model is also discussed.

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