Magnetic fields and the abundance of iron at the surface of late-type dwarfs

Details Magnetic fields and the abundance of iron at the surface of late-type dwarfs Magnetic fields and the abundance of iron at the surface of late-type dwarfs

Jan 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996ap.....39....1s&link_type=abstract

Astrophysics, Volume 39, Issue 1, pp.1-7

Astronomy and Astrophysics

Astrophysics

Scientific paper

A program package developed for implementation of the Stenflo-Lindegren method for investigation of magnetic fields with complex structure is described. It has been used to carry out magnetic field diagnostics of several G-K dwarfs. A field the order of 1 kG was detected at the surface of two of them — ɛ Eri and 61 Cyg A. The magnetic field determination for ɛ Eri is compared with previously published results. An interactive PC program developed for measurement of equivalent widths of spectral lines by various methods is also described. It was used to determine the iron abundance in the atmospheres of the stars under investigation. Comparison with data from the [Fe/H] catalog of Carel de Strobel [14] indicates that our values are higher by 0.2 dex for ɛ Eri and ξ Boo A.

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