Derezea, Efthymia and Kume, Alfred and Froebrich, Dirk (2022) An application of Saddlepoint Approximation for period detection of stellar light observations. [Preprint] (doi:10.48550/arXiv.2201.11762) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:98210)
The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. | |
Official URL: https://doi.org/10.48550/arXiv.2201.11762 |
Resource title: | An application of Saddlepoint approximation for period detection of stellar light observations |
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Resource type: | Publication |
DOI: | 10.1093/jrsssc/qlac001 |
KDR/KAR URL: | https://kar.kent.ac.uk/100495/ |
External URL: | https://doi.org/10.1093/jrsssc/qlac001 |
Abstract
One of the main features of interest in analysing the light curves of stars is the underlying periodic behaviour. The corresponding observations are a complex type of time series with unequally spaced time points. The main tools for analysing these type of data rely on the periodogram-like functions, constructed with a desired feature so that the peaks indicate the presence of a potential period. In this paper, we explore a particular periodogram for the irregularly observed time series data. We identify the potential periods by implementing the saddlepoint approximation, as a faster and more accurate alternative to the simulation based methods that are currently used. The power analysis of the testing methodology is reported together with applications using light curves from the Hunting Outbursting Young Stars citizen science project.
Item Type: | Preprint |
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DOI/Identification number: | 10.48550/arXiv.2201.11762 |
Refereed: | No |
Other identifier: | https://arxiv.org/abs/2201.11762 |
Name of pre-print platform: | arXiv |
Uncontrolled keywords: | Cross-Validation, Hypotheses testing, Non-parametric statistics, Periodogram, Quadratic Forms, Saddlepoint |
Subjects: | Q Science > QB Astronomy > QB460 Astrophysics |
Divisions: | Divisions > Division of Natural Sciences > Physics and Astronomy |
Funders: | University of Kent (https://ror.org/00xkeyj56) |
Depositing User: | Dirk Froebrich |
Date Deposited: | 21 Nov 2022 14:20 UTC |
Last Modified: | 05 Aug 2024 14:35 UTC |
Resource URI: | https://kar.kent.ac.uk/id/eprint/98210 (The current URI for this page, for reference purposes) |
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