University of Cambridge > Talks.cam > Isaac Newton Institute Seminar Series > Some aspects of stellar magnetism (Keynote speaker)

Some aspects of stellar magnetism (Keynote speaker)

Add to your list(s) Download to your calendar using vCal

If you have a question about this talk, please contact nobody.

DY2W01 - Dynamos in planets and stars - similarities and differences

In this talk, we will review some aspects of the stellar magnetism and in particular what numerical simulations tell us about the physical processes underlying the observations. In cool Sun-like stars, a convective dynamo is thought to be responsible for the presence and evolution of magnetic fields. One important aspect of stellar dynamos is the possible presence of magnetic cycles, whose caracteristics depend on the stellar parameters. Another question is how magnetic flux is transported from the interior to the surface to produce starspots and whether those spots play a role in the dynamo process. In more evolved stars, i.e. subgiant and giant stars, new asteroseismic results just showed that strong magnetic fields exist in their cores. They may be responsible for an efficient transport of angular momentum that would explain the much-slower-than-expected core rotation of these stars. We will show in this talk that numerical simulations may help us tackle several of the above key questions about stellar magnetism.

This talk is part of the Isaac Newton Institute Seminar Series series.

Tell a friend about this talk:

This talk is included in these lists:

Note that ex-directory lists are not shown.

 

© 2006-2024 Talks.cam, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity