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We present a new method of extending the single band Analysis of Varianceperiod estimation algorithm to multiple bands. We use SDSS Stripe 82 RR Lyraeto show that in the case of low number of observations per band andnon-simultaneous observations, improvements in period recovery rates of up to$\approx$60\% are observed. We also investigate the effect of inter-bandobserving cadence on period recovery rates. We find that using non-simultaneousobservation times between bands is ideal for the multiband method, and usingsimultaneous multiband data is only marginally better than using single banddata. These results will be particularly useful in planning observing cadencesfor wide-field astronomical imaging surveys such as LSST. They also have thepotential to improve the extraction of transient data from surveys with few($\lesssim 30$) observations per band across several bands, such as the DarkEnergy Survey.

the astrophysical journal. letters

A Multiband Generalization of the Analysis of Variance Period Estimation  Algorithm and the Effect of Inter-band Observing Cadence on Period Recovery  Rate