Diffusion and Its Manifestation in Stellar Atmospheres

  • Tatiana Ryabchikova
Part of the GeoPlanet: Earth and Planetary Sciences book series (GEPS)


A short introduction to the diffusion process under mutual action of radiation acceleration and gravitational settling is given. In a stable stellar atmosphere diffusion develops significant abundance gradients (chemical stratification). The effects of stratification appear as changes in the observed spectral characteristics that are considered in the lecture.


Diffusion Stars: atmospheres Stars: fundamental parameters  Stars: abundances Stars: chemically peculiar 



This work was partially supported by Praesidium RAS Program “Nonstationary Phenomena in Objects of the Universe”.


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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  1. 1.Institute of Astronomy, Russian Academy of SciencesMoscowRussia

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