Open AccessOn the irregular temporal behaviour of the variable star R Scuti
Author(s) -
König M.,
Paunzen E.,
Timmer J.
Publication year - 1999
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1046/j.1365-8711.1999.02216.x
Subject(s) - physics , superposition principle , astrophysics , star (game theory) , variable star , statistical physics , variable (mathematics) , cepheid variable , stars , mathematical analysis , mathematics , quantum mechanics
We comment on the recent results of a temporal analysis of R Scuti, a star of RV Tauri type, presented by Buchler et al. As an alternative approach, we apply the technique of linear state space analysis to describe the irregular temporal behaviour with a linear stochastic process. We find evidence that the variability of R Scuti can be explained by the superposition of two stochastically driven damped oscillators.