The magnetic fields at the surface of active single G-K giants
International audience We investigate the magnetic field at the surface of 48 red giants selected as promising for detection of Stokes V Zeeman signatures in their spectral lines. We use the spectropolarimeters Narval and ESPaDOnS to detect circular polarization within the photospheric absorption li...
Published in: | Astronomy & Astrophysics |
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Main Authors: | , , , , , , , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2015
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Subjects: | |
Online Access: | https://hal.in2p3.fr/in2p3-01954376 https://doi.org/10.1051/0004-6361/201424579 |