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Matteo Cantiello added Our_results_show_that_main__.tex
over 8 years ago
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Our results show that main-sequence stars with no observable magnetic field
at the surface can still harbour strong fields in the core that survive
into the red giant phase.
The presence of internal magnetic fields might play an important role for
angular momentum transport.
[AND potentially influence mixing processes in their interiors REF TO WHAT
REF-2 TALKS ABOUT]
Fields too weak to suppress dipolar oscillation modes may exist in normal
red giants, and these fields may nevertheless transport enough angular
momentum to help explain the measured rotation rates of red giant cores
\citep{Mosser_2012,Cantiello_2014}.
After some time, intermediate-mass red giants also start burning helium in
their cores. Suppressed dipolar modes in those so-called red clump stars
will reveal whether the fields survive until helium-core burning, and
whether they can account for magnetic fields observed in stellar remnants
such as white dwarfs. Like intermediate-mass stars, more massive stars
($M>10$\msun) also undergo convective hydrogen-core burning that generates
a magnetic dynamo, and which may produce the magnetic fields observed in
many neutron stars.