3D Hydrodynamical model stellar atmospheres of metal-poor red giants

• We investigate the main differences between static 1D and 3D time-dependent model stellar atmospheres of red giants at very low metallicities. We focus in particular on the impact of 3D LTE spectral line formation on the derivation of elemental abundances for the extremely metal-poor ([Fe/H] ≈-5.3) red giant HE 0107-5240.

Ämnesord

NATURVETENSKAP  -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)

Nyckelord

Stars: late-type

stars: atmospheres

methods: numerical

hydrodynamics

line: formation

stars: abundances

Astronomy

Astronomi

Publikations- och innehållstyp

vet (ämneskategori)

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