Impact broadening of alkali lines in brown dwarfs - Archive ouverte HAL
Article Dans Une Revue The European Physical Journal D : Atomic, molecular, optical and plasma physics Année : 2007

Impact broadening of alkali lines in brown dwarfs

Résumé

Spectral line widths of the light alkalies are presented for conditions prevailing in brown dwarf atmospheres. A unified line shape theory and a set of pseudopotentials are used to compute widths of Li, Na, and K resonance lines perturbed by He and H2. While limited available experimental data confirm the trends found in the theoretical values reported here, they suggest that improved potentials are needed.

Dates et versions

hal-03646560 , version 1 (19-04-2022)

Identifiants

Citer

N. F. Allard, J. F. Kielkopf, F. Allard. Impact broadening of alkali lines in brown dwarfs. The European Physical Journal D : Atomic, molecular, optical and plasma physics, 2007, 44, pp.507-514. ⟨10.1140/epjd/e2007-00230-6⟩. ⟨hal-03646560⟩
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