García, R. A.; Corbard, T.; Chaplin, W. J.; Couvidat, S.; Eff-Darwich, A.; Jiménez-Reyes, S. J.; Korzennik, S. G.; Ballot, J.; Boumier, P.; Fossat, E.; Henney, C. J.; Howe, R.; Lazrek, M.; Lochard, J.; Pallé, P. L.; Turck-Chièze, S.
Bibliographical reference
Solar Physics, Volume 220, Issue 2, pp.269-285
Advertised on:
4
2004
Journal
Citations
61
Refereed citations
36
Description
In the modern era of helioseismology we have a wealth of high-quality
data available, e.g., more than 6 years of data collected by the various
instruments on board the SOHO mission, and an even more extensive
ground-based set of observations covering a full solar cycle. Thanks to
this effort a detailed picture of the internal rotation of the Sun has
been constructed. In this paper we present some of the actions that
should be done to improve our knowledge of the inner rotation profile
discussed during the workshop organized at Saclay on June 2003 on this
topic. In particular we will concentrate on the extraction of the
rotational frequency splittings of low- and medium-degree modes and
their influence on the rotation of deeper layers. Furthermore, for the
first time a full set of individual |m|-component rotational splittings
is computed for modes ℓ≤4 and 1<ν<2 mHz, opening new
studies on the latitudinal dependence of the rotation rate in the
radiative interior. It will also be shown that these splittings have the
footprints of the differential rotation of the convective zone which can
be extremely useful to study the differential rotation of other stars
where only these low-degree modes will be available.