Lithium abundances in atmospheres of PMS stars FN Tau and V927 Tau

Details Lithium abundances in atmospheres of PMS stars FN Tau and V927 Tau Lithium abundances in atmospheres of PMS stars FN Tau and V927 Tau

Sep 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000kfnts...3..360l&link_type=abstract

Kinematika i Fizika Nebesnykh Tel, Suppl, no. 3, p. 360-362

Computer Science

Scientific paper

We present the fits of synthetical spectra to the observed spectra of the young pre-main sequence stars V927 Tau (M5.5IV) and FN Tau (M5IV). The profiles of K line at λ 7699 Å, resonance and subordinate doublets of Li at λ 6708 Å and λ
8126 Å are simulated. The model atmospheres of Alard and Hauschildt (1995) are used to compute the spectra. Rotational velocities for FN Tau v sin i = 13 km/s and 22 km/s for V927 Tau are adopted. We determine log{g} = 4.0 for V927 Tau and log{g} = 3.5 for FN Tau for Teff= 3100 K, using the K line profile fits. For V927 Tau log{N(Li)} = 2.5 for λ 6708 Å and 2.7 for λ 8126 Å region, and for FN Tau 3.0 and 3.3, respectively were obtained.

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