Title: Physical realism in the analysis of stellar magnetic fields. III - Flux tubes and multicomponent atmospheres
Abstract: view Abstract Citations (23) References (37) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Physical Realism in the Analysis of Stellar Magnetic Fields. III. Flux Tubes and Multicomponent Atmospheres Basri, Gibor ; Marcy, Geoffrey W. ; Valenti, Jeff A. Abstract Several important tests of likely systematic effects in the analysis of Zeeman broadening on cool stars have been performed. The effects of different atmospheric structures inside and outside of magnetic regions are considered, and the effects of field gradients within flux tubes and of errors in the assumed spectral type of a star are considered. It is found that substantial effects are possible which render the results of one-component analyses somewhat uncertain, with systematic errors potentially as great as 40 percent in the derived magnetic flux. However, it appears that two-component models consisting of quiet and flux tube regions may be oversimplified, since the predicted line profiles tend to be shallower than those observed. Publication: The Astrophysical Journal Pub Date: September 1990 DOI: 10.1086/169152 Bibcode: 1990ApJ...360..650B Keywords: Cool Stars; Magnetic Flux; Main Sequence Stars; Stellar Atmospheres; Stellar Magnetic Fields; Astronomical Models; Starspots; Stellar Spectra; Stellar Temperature; Zeeman Effect; Astrophysics; LINE PROFILES; STARS: ATMOSPHERES; STARS: MAGNETIC; ZEEMAN EFFECT full text sources ADS | data products SIMBAD (2) Related Materials (2) Part 1: 1988ApJ...330..274B Part 2: 1989ApJ...345..480M
Publication Year: 1990
Publication Date: 1990-09-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 21
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