Measurement of the metal abundance and magnetic field of the late-type stars HR 5553, ɛ Eri and 70 Oph

Details Measurement of the metal abundance and magnetic field of the late-type stars HR 5553, ɛ Eri and 70 Oph Measurement of the metal abundance and magnetic field of the late-type stars HR 5553, ɛ Eri and 70 Oph

Feb 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999cha%26a..23..361l&link_type=abstract

Chinese Astronomy and Astrophysics, Volume 23, Issue 3, p. 361-370.

Astronomy and Astrophysics

Astrophysics

2

Scientific paper

This paper presents high-resolution (6 × 104), high S/N (200-500) spectra of three K-type chromospheric active stars, HR 5553, ɛ Eri and 70 Oph. The observations were made using an echelle spectrograph on the 2.16-m telescope of Beijing/Xinglong Station in 1995 and 1996. The atmosphere parameters and the abundances of 13 metals for these stars were determined from a detailed spectroscopic analysis and their magnetic field strength B and filling factor α found by the Stenflo-Lindegren method.

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