Sodium ionization in T-tauri stars

descriptionPublicationkeyboard_double_arrow_right Part of book or chapter of book , Article , Other literature type 01 Jan 1989 English Publisher:Springer Berlin HeidelbergJournal:International Astronomical Union Colloquium, volume 120, pages 304-304 (issn: 0252-9211,

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Authors: A. Natta; C. Giovanardi;

doi: 10.1007/bfb0114888 , 10.1017/s0252921100023952

Sodium ionization in T-tauri stars

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Abstract

We present the results of a study of the sodium ionization and excitation in the winds of low-luminosity, pre-main-sequence stars. Line profiles for the Nal doublet at 5990,5986 Åare discussed and compared with the observations for those T Tauri stars with P-Cygni profiles. We find that the observed shape of the lines put significative constraints on the rate of mass-loss (M ≥ 3 x 10-8M⊙/yr).

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