Photometric observations from theoretical flip-flop models
Astrophysics
2009-11-11 v1
Abstract
Some active stars show a so-called flip-flop phenomenon in which the main spot activity periodically switches between two active longitudes that are 180 degrees apart. In this paper we study the flip-flop phenomenon by converting results from dynamo calculations into long-term synthetic photometric observations, which are then compared to the real stellar observations. We show that similar activity patterns as obtained from flip-flop dynamo calculations, can also be seen in the observations. The long-term light-curve behaviour seen in the synthesised data can be used for finding new stars exhibiting the flip-flop phenomenon.
Cite
@article{arxiv.astro-ph/0506267,
title = {Photometric observations from theoretical flip-flop models},
author = {H. Korhonen and D. Elstner},
journal= {arXiv preprint arXiv:astro-ph/0506267},
year = {2009}
}
Comments
5 pages, 5 figures, accepted for publication in A&A