Kilo-Gauss Magnetic Fields in Three DA White Dwarfs
Aznar Cuadrado, R., Jordan, S., Napiwotzki, R., Schmid, H.M., Solanki, S.K. and Mathys, G.
(2005)
Kilo-Gauss Magnetic Fields in Three DA White Dwarfs.
In:
In: Procs of the 14th European Workshop on White Dwarfs - ASP Conference Series 334 :.
Astronomical Society of the Pacific, pp. 159-164.
ISBN 1-58381-197-4
We have detected longitudinal magnetic fields between 2 and 4 kG in three normal DA white dwarfs (WD0446¡790, WD1105¡048, WD2359¡434) out of a sample of 12 by using optical spectropolarimetry done with the VLT Antu 8 m telescope equipped with FORS1. With the exception of 40 Eri B (4 kG) these are the first positive detections of magnetic fields in white dwarfs below 30 kG. A detection rate of 25 % (3/12) may indicate now for the first time that a substantial fraction of white dwarfs have weak magnetic fields. This result, if confirmed by future observations, would form a cornerstone for our understanding of the evolution of stellar magnetic fields.
Item Type | Book Section |
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Additional information | Original paper can be found at: http://www.astrosociety.org/pubs/cs/328.html--Copyright Astronomical Society of the Pacific |
Date Deposited | 15 May 2025 16:18 |
Last Modified | 30 May 2025 23:08 |
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