Open AccessThe analysis of indexed astronomical time series –VII. Simultaneous use of times of maxima and minima to test for period changes in long‐period variables
Author(s) -
Koen Chris,
Lombard Fred
Publication year - 2001
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.1365-8711.2001.04526.x
Subject(s) - maxima and minima , maxima , physics , period (music) , series (stratigraphy) , variable star , star (game theory) , stars , statistical physics , light curve , astrophysics , statistics , mathematical analysis , mathematics , history , paleontology , performance art , biology , acoustics , art history
A statistical model is formulated that enables one to analyse jointly the times between maxima and minima in the light curves of monoperiodic pulsating stars. It is shown that the combination of both sets of data into one leads to analyses that are more sensitive. Illustrative applications to the American Association of Variable Star Observers data for a number of long‐period variables demonstrate the usefulness of the approach.