Properties of the first-order moments of the polarization profiles of hydrogen lines.
Abstract
In this article, we investigate some noteworthy properties of the first-order moments of the polarization profiles of hydrogen lines in the presence of external electric and magnetic fields. These properties are useful in testing the applicability of the centers-of-gravity method for the estimate of magnetic fields, whenever electric fields are also present. A criticism is also raised about the effective Lande factor in hydrogen lines as previously calculated by different authors. In addition, we achieve a better insight into the problem of the numerical precision of the software package which has been developed for the calculation of the polarization properties of hydrogen lines, a problem already approached in a previous paper.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- November 1994
- Bibcode:
- 1994A&A...291..668C
- Keywords:
-
- Electric Fields;
- Electric Moments;
- H Alpha Line;
- Magnetic Fields;
- Polarized Radiation;
- Radiative Transfer;
- Hamiltonian Functions;
- Numerical Analysis;
- Polarization (Waves);
- Solar Physics;
- MAGNETIC FIELDS;
- POLARIZATION;
- RADIATIVE TRANSFER;
- LINE: FORMATION;
- ATOMIC PROCESSES