Solving the Paradox of the Solar Sodium D$_1$ Line Polarization
Additional information
Authors
Alsina Ballester E.,
Belluzzi L.,
Trujillo Bueno J.
Type
Journal Article
Year
2021
Language
English
Abstract
Twenty-five years ago, enigmatic linear polarization signals were discovered in the core of the sodium D$_1$ line. The only explanation that could be found implied that the solar chromosphere is practically unmagnetized, in contradiction with other evidences. This opened a paradox that has challenged physicists for many years. Here we present its solution, demonstrating that these polarization signals can be properly explained in the presence of magnetic fields in the gauss range. This result opens a novel diagnostic window for exploring the elusive magnetism of the solar chromosphere.
Journal
Physical Review Letters
Volume
127
Number
8
Start page number
081101
Keywords
irsol-refereed-scientific-papers
