The polarization angle in the wings of Ca I 4227: A new observable for diagnosing unresolved photospheric magnetic fields

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Authors: Capozzi, Emilia ; Alsina Ballester, Ernest ; Belluzzi, Luca ; Trujillo Bueno, Javier

Journal title: Astronomy & Astrophysics

Journal number: 657

Journal publisher: Springer Verlag

Published year: 2021

DOI identifier: 10.1051/0004-6361/202140753

ISSN: 0004-6361