Period analysis for simultaneous multichannel photometric observations

Details Period analysis for simultaneous multichannel photometric observations Period analysis for simultaneous multichannel photometric observations

Nov 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000a%26as..146..397y&link_type=abstract

Astronomy and Astrophysics Supplement, v.146, p.397-406

Astronomy and Astrophysics

Astrophysics

4

Method: Analytical, Data Analysis

Scientific paper

The method of three stage weighted period analysis is generalized for simultaneous multichannel observations. The new method is based on the phase dispersion minimization over all channels simultaneously. The three stages in the full algorithm are phase dispersion minimization method (PDM), linear modeling (LM) and nonlinear modeling (NLM). Simple computational tests of the multichannel period analysis (MPA) are presented. We show that the method has advantages if compared with methods where single channels are analysed separately. We derive a general formula for spurious periods and demonstrate that the interpretation of peaks in the PDM spectra can be more complicated than in classical power spectra.

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