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Magnetic fields during the evolution towards planetary nebulae

Wouter Vlemmings (Institutionen för rymd- och geovetenskap, Radioastronomi och astrofysik)
Planetary Nebulae: An Eye to the Future. 283rd Symposium of the International-Astronomical-Union, Puerto de la Cruz, Spain, July 25-29, 2011 (1743-9213). Vol. 283 (2012), p. 176-179.
[Konferensbidrag, refereegranskat]

Magnetic fields appear ubiquitous throughout the envelopes of evolved stars. However, their origin and role in the formation of planetary nebulae is still unclear. As observations of magnetic fields are complicated and time consuming, the observed samples of AGB and post-AGB stars and planetary nebulae are still small. Still, magnetic energy seems to dominate the energy budget out to a distance of several tens of AU from the central star and the field morphology often appears to be well ordered. A short summary is given of the current observations and the potential of new instruments such as ALMA is discussed.

Nyckelord: Stars: AGB and post-AGB, planetary nebulae: general, magnetic fields, late-type stars, sio masers, oh masers, polarization, polarimetry

Denna post skapades 2012-11-29. Senast ändrad 2014-09-02.
CPL Pubid: 166927


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Institutioner (Chalmers)

Institutionen för rymd- och geovetenskap, Radioastronomi och astrofysik (2010-2017)


Astronomi, astrofysik och kosmologi

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