First detection of a weak magnetic field on the giant Arcturus: remnants of a solar dynamo?

2011/03/16 by C. Sennhauser, S. V. Berdyugina · 3 citations
Physics and Astronomy · #Stellar, planetary, and galactic studies #Astro and Planetary Science #Solar and Space Plasma Dynamics

paper · pdf · doi:10.1051/0004-6361/201015445

openalex publication_date 2011/03/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31

Abstract

Context. Arcturus is the second closest K giant and among the brightest stars in the sky. It has not been found to have a magnetic field, even though Ca ii H&K lines as activity indicators imply that Arcturus is magnetically active.

Citations

• The Rotation of Arcturus and Active Longitudes on Giant Stars
• Long‐Term Spectroscopic Monitoring of Arcturus
• Long-period radial velocity variations in three K giants
• Dynamo-generated magnetic fields in fast rotating single giants
• Buried Alive in the Coronal Graveyard
• The limb-darkened Arcturus: imaging with the IOTA/IONIC interferometer

Cited by

• The Magnetic Fields at the Surface of Active Single G-K Giants
• The Wind Temperature and Mass-loss Rate of Arcturus (K1.5 III)
• Arcturus [wikipedia]