Magnetic fields of AGB and post-AGB stars
Artikel i vetenskaplig tidskrift, 2019

There is ample evidence for the presence of strong magnetic fields in the envelopes of (post-)Asymptotic Giant Branch (AGB) stars as well as supergiant stars. The origin and role of these fields are still unclear. This paper updates the current status of magnetic field observations around AGB and post-AGB stars, and describes their possible role during these stages of evolution. The discovery of magnetically aligned dust around a supergiant star is also highlighted. In our search for the origin of the magnetic fields, recent observations show the signatures of possible magnetic activity and rotation, indicating that the magnetic fields might be intrinsic to the AGB stars.

stars: AGB and post-AGB

spots

supergiants

polarization

rotation

magnetic fields

Författare

Wouter Vlemmings

Chalmers, Rymd-, geo- och miljövetenskap, Astronomi och plasmafysik, Galaktisk astrofysik

Proceedings of the International Astronomical Union

1743-9213 (ISSN) 1743-9221 (eISSN)

Vol. 14 19-26

Ämneskategorier

Astronomi, astrofysik och kosmologi

Annan geovetenskap och miljövetenskap

Fusion, plasma och rymdfysik

Infrastruktur

Onsala rymdobservatorium

DOI

10.1017/S1743921318005367

Mer information

Senast uppdaterat

2020-01-16