Speaker
Ana Brito
(IST/CENTRA)
Description
F-type stars are very diverse concerning magnetic and rotational properties. As it is well know, in these stars magnetism and rotation are intimately linked. Understanding how these macroscopic observable properties relate to the physics of the stellar interiors is a challenging exercise.
We studied the relation between the star's rotation period and partial ionization processes occurring in the outer envelopes of a subset of stars of the Kepler legacy sample. We found a trend, in the form of a power-law dependence, that favors the idea that ionization is acting as an underlying mechanism, which is crucial for understanding the relation between rotation and magnetism and even observational features such as the Kraft break.
Authors
Ana Brito
(IST/CENTRA)
Ilidio Lopes
(CENTRA-IST)