Locating the flickering source in polars
Solar and Stellar Astrophysics
2022-09-13 v1 High Energy Astrophysical Phenomena
Abstract
Flickering is a fast variability observed in all accreting systems. It has been shown that in most cataclysmic variables flickering originates in the accretion disc. However, in polars the strong magnetic field of the white dwarf prevents the formation of an accretion disc. Therefore, the origin of flickering in polars is not clear. We analyzed the changes of flickering amplitude with orbital phase in seven polars in order to reveal its site of origin. We show that at least in some polars there are two separate sources of flickering. Moreover, at least one of the sources is located at a large distance from the main source of light in the system.
Cite
@article{arxiv.2209.05162,
title = {Locating the flickering source in polars},
author = {Krystian Ilkiewicz and Simone Scaringi and Colin Littlefield and Paul A. Mason},
journal= {arXiv preprint arXiv:2209.05162},
year = {2022}
}
Comments
7 pages, 9 figures, accepted for publication on MNRAS