The Analysis of Indexed Astronomical Time Series - Part Two - the O-C / Observed - Calculated / Technique Reconsidered

Details The Analysis of Indexed Astronomical Time Series - Part Two - the O-C / Observed - Calculated / Technique Reconsidered The Analysis of Indexed Astronomical Time Series - Part Two - the O-C / Observed - Calculated / Technique Reconsidered

Jul 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993mnras.263..309l&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Vol. 263, NO.2/JUL15, P. 309, 1993

Astronomy and Astrophysics

Astronomy

47

Methods: Data Analysis - Stars: Individual: Ry Sgr - Stars: Oscillations

Scientific paper

Circumstances under which application of the 0- C technique leads to spurious conclusions are described. For data in which measurements of many individual cycle lengths are available, use of the CUSUM method is a good alternative. The contentions of the paper are illustrated by application to observations of RY Sgr: in contrast to several previous authors, it is concluded that the mean pulsation period of the star is not changing.

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