SIMBAD references

2006MNRAS.365..489K - Mon. Not. R. Astron. Soc., 365, 489-495 (2006/January-2)

The analysis of indexed astronomical time series - X. Significance testing of O-C data.


Abstract (from CDS):

It is assumed that O-C (`observed minus calculated') values of periodic variable stars are determined by three processes, namely measurement errors, random cycle-to-cycle jitter in the period, and possibly long-term changes in the mean period. By modelling the latter as a random walk, the covariances of all O-C values can be calculated. The covariances can then be used to estimate unknown model parameters, and to choose between alternative models. Pseudo-residuals which could be used in model fit assessment are also defined. The theory is illustrated by four applications to spotted stars in eclipsing binaries.

Abstract Copyright: 2005 The Author. Journal compilation © 2005 RAS

Journal keyword(s): methods: data analysis - methods: statistical - stars: variables: other

Status at CDS:  

Simbad objects: 4

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