Using conditional entropy to identify periodicity

Abstract

This paper presents a new period finding method based on conditional entropy that is both efficient and accurate. We demonstrate its applicability on simulated and real data. We find that it has comparable performance to other information-based techniques with simulated data but is superior with real data, both for finding periods and just identifying periodic behaviour. In particular, it is robust against common aliasing issues found with other period-finding algorithms.

8 pages, 7 figures, accepted for publication in Monthly Notices of Royal Astronomical Society; revised version (corrected reference to MACHO)

References in corpus (1)

• The generalised Lomb-Scargle periodogram. A new formalism for the floating-mean and Keplerian periodograms

Cited by in corpus (48)

• Understanding the Lomb-Scargle Periodogram
• General relativistic orbital decay in a seven-minute-orbital-period eclipsing binary system
• Machine Learning for the Zwicky Transient Facility
• A highly magnetised and rapidly rotating white dwarf as small as the Moon
• A systematic search of Zwicky Transient Facility data for ultracompact binary LISA-detectable gravitational-wave sources
• A comparison of period finding algorithms
• RobustPeriod: Time-Frequency Mining for Robust Multiple Periodicity Detection
• Machine Learning-based Brokers for Real-time Classification of the LSST Alert Stream
• Computational Intelligence Challenges and Applications on Large-Scale Astronomical Time Series Databases
• An 8.8 minute orbital period eclipsing detached double white dwarf binary
• Review of X-ray pulsar spacecraft autonomous navigation
• Magnetic braking saturates: evidence from the orbital period distribution of low-mass detached eclipsing binaries from ZTF
• A new class of Roche lobe-filling hot subdwarf binaries
• Velocity monitoring of gamma-Cas stars reveals their binarity status
• A new class of pulsating hot subdwarfs
• The CARMENES search for exoplanets around M dwarfs. Period search in H$\alpha$, Na I D, and Ca II IRT lines
• The rotation period distribution of the rich Pleiades-age Southern open cluster NGC 2516. Existence of a representative zero-age main sequence distribution
• Robust period estimation using mutual information for multi-band light curves in the synoptic survey era
• A Systematic Search for Short-period Close White Dwarf Binary Candidates Based on Gaia EDR3 Catalog and Zwicky Transient Facility Data
• The ZTF Source Classification Project: I. Methods and Infrastructure
• The ZTF Source Classification Project: II. Periodicity and variability processing metrics
• ZTF J1901+5309: A 40.6-Minute Orbital Period Eclipsing Double White Dwarf System
• Chemical abundances of fast-rotating massive stars. I. Description of the methods and individual results
• A comparative study of four significance measures for periodicity detection in astronomical surveys
• A 62-minute orbital period black widow binary in a wide hierarchical triple
• Real-Time Data Mining of Massive Data Streams from Synoptic Sky Surveys
• pi Aqr is another gamma-Cas object
• Identifying Blue Large Amplitude Pulsators from Gaia DR2 & ZTF DR3
• A rotating white dwarf shows different compositions on its opposite faces
• Let there be more variability in two gamma Cas stars
• Photometric identification of the periods of the first candidate extragalactic magnetic massive stars
• The most variable VVV sources: eruptive protostars, dipping giants in the Nuclear Disc and others
• Multiscale entropy analysis of astronomical time series. Discovering subclusters of hybrid pulsators
• Searching for the Next Galactic Luminous Red Nova
• Variations on a theme -- the puzzling behaviour of Schulte 12
• BRITE photometry of the massive post-RLOF system HD149404
• S-ACF: A selective estimator for the autocorrelation function of irregularly sampled time series
• Removing Aliases in Time-Series Photometry
• B stars seen at high resolution by XMM-Newton
• GPU-Accelerated Periodic Source Identification in Large-Scale Surveys: Measuring $P$ and $\dot{P}$
• Applying Information Theory to Design Optimal Filters for Photometric Redshifts
• The First Eclipsing Binary Catalogue from the MOA-II database
• Automated Real-Time Classification and Decision Making in Massive Data Streams from Synoptic Sky Surveys
• Unveiling VVV/WISE Mira variables on the far side of the Galactic disk: Distances, kinematics and a new extinction law
• Quest for the tertiary component in Cyg OB2 #5
• The puzzling properties of the magnetic O star Tr16-22
• FINKER: Frequency Identification through Nonparametric KErnel Regression in astronomical time series
• GPU-Enabled Searches for Periodic Signals of Unknown Shape