The origins of the magnetic field in tip-RGB, AGB and post-AGB stars ...

During the last decade and a half, the new generation spectropolarimeter Narval at Pic du Midi, France allowed the study of weak magnetic fields in cool giant stars that are fairly evolved after main sequence. We present a short summary on the recent knowledge on the magnetic fields and activity in...

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Bibliographic Details
Main Authors: Konstantinova-Antova, Renada, Georgiev, Stefan, Lèbre, Agnès, Charbonnel, Corinne, Palacios, Ana, Aurière, Michel
Format: Report
Language:unknown
Published: arXiv 2024
Subjects:
Solar and Stellar Astrophysics astro-ph.SR
FOS Physical sciences
narval
Online Access:https://dx.doi.org/10.48550/arxiv.2407.17421
https://arxiv.org/abs/2407.17421
Description
Summary:During the last decade and a half, the new generation spectropolarimeter Narval at Pic du Midi, France allowed the study of weak magnetic fields in cool giant stars that are fairly evolved after main sequence. We present a short summary on the recent knowledge on the magnetic fields and activity in giants situated in the upper right part of the Hertzsprung-Russel (H-R) diagram and discuss on the possible mechanisms for magnetic field generation in the asymptotic giants branch (AGB) and post-AGB stars. ... : Accepted for publication in Bulgarian Astronomical Journal, volume 42 (2025) ...

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