| Issue |
J. Phys. Colloques
Volume 49, Number C1, Mars 1988
IAU Colloquium N° 102 on UV and X-ray Spectroscopy of Astrophysical and Laboratory Plasmas
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| Page(s) | C1-263 - C1-265 | |
| DOI | https://doi.org/10.1051/jphyscol:1988156 | |
IAU Colloquium N° 102 on UV and X-ray Spectroscopy of Astrophysical and Laboratory Plasmas
J. Phys. Colloques 49 (1988) C1-263-C1-265
DOI: 10.1051/jphyscol:1988156
1 Laboratoire Aimé Cotton, Bât. 505, F-91405 Orsay Cedex, France
2 Nuclear Research Centre of Negev, POB 9001, Beer-Sheva, Israel
J. Phys. Colloques 49 (1988) C1-263-C1-265
DOI: 10.1051/jphyscol:1988156
QUICK INTERPRETATION OF UNRESOLVED HYPERFINE AND/OR ZEEMAN STRUCTURES IN STELLAR SPECTRA
J. BAUCHE1 et J. OREG21 Laboratoire Aimé Cotton, Bât. 505, F-91405 Orsay Cedex, France
2 Nuclear Research Centre of Negev, POB 9001, Beer-Sheva, Israel
Abstract
Some atomic or ionic lines emitted by the stellar atmospheres are very useful clues for estimating the local magnetic fields. However, their use is often complicated by insufficient experimental resolution and by the occurence of hyperfine structure. But the average wavelength and the width of the component set corresponding to each type of polarisation are given by compact formulae, in terms of the magnetic field, and of the Landé factors and hyperfine magnetic and electric constants of both involved levels.