Absorption profiles of the potassium 4s-4p and 4p-5s lines perturbed by helium

Details Absorption profiles of the potassium 4s-4p and 4p-5s lines perturbed by helium Absorption profiles of the potassium 4s-4p and 4p-5s lines perturbed by helium

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011sf2a.conf..439a&link_type=abstract

SF2A-2011: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics Eds.: G. Alecian, K. Belkacem,

Astronomy and Astrophysics

Astrophysics

Line: Profiles, Stars: Low Mass, Brown Dwarfs, Stars: Atmospheres

Scientific paper

An accurate determination of the complete profile including the extreme far wing is required to model the contribution of strong alkali resonance lines to brown dwarf spectra. A unified theory of collisional line profiles has been applied for the evaluation of the absorption coefficients of potassium perturbed by helium. Results are reported here from the optical range to the near-infrared.

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