| Issue |
A&A
Volume 495, Number 2, February IV 2009
|
|
|---|---|---|
| Page(s) | 577 - 586 | |
| Section | The Sun | |
| DOI | https://doi.org/10.1051/0004-6361:200810409 | |
| Published online | 07 October 2008 | |
A spectroscopic analysis of the most polarizing atomic lines of the second solar spectrum*
Dipartimento di Astronomia e Scienza dello Spazio, University of Firenze, Largo E. Fermi, 2 - 50 125 Firenze, Italy e-mail: belluzzi@arcetri.astro.it
Received:
17
June
2008
Accepted:
18
September
2008
We present an analysis of the second solar spectrum, as plotted in
graphical form in the three volumes of the atlas “The Second Solar Spectrum”,
in the wavelength range between 3160 Å and 6995 Å.
All the strongest positive linear polarization signals produced by atomic
spectral lines are identified, and their amplitudes are listed, along with
the most relevant spectroscopic properties of the lines.
The various signals are divided into five classes according to the shape of
their 
profiles.
Three empirical rules are formulated from the analysis of the amplitude and
shape of the various signals, and of the spectroscopic properties of the
spectral lines.
Key words: atomic data / line: profiles / polarization / scattering / Sun: atmosphere
© ESO, 2009
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