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The Cluster AgeS Experiment (CASE). Detecting Aperiodic Photometric Variability with the Friends of Friends Algorithm

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cris.lastimport.scopus2024-02-12T20:21:49Z
dc.abstract.enWe adapt the friends of friends algorithm to the analysis of light curves, and show that it can be succesfully applied to searches for transient phenomena in large photometric databases. As a test case we search OGLE-III light curves for known dwarf novae. A single combination of control parameters allows us to narrow the search to 1% of the data while reaching a ≍90% detection efficiency. A search involving ≍2% of the data and three combinations of control parameters can be significantly more effective - in our case a 100% efficiency is reached. The method can also quite efficiently detect semi-regular variability. In particular, 28 new semi-regular variables have been found in the field of the globular cluster M22, which was examined earlier with the help of periodicity-searching algorithms.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorRozyczka, M.
dc.contributor.authorNarloch, W.
dc.contributor.authorPietrukowicz, Paweł
dc.contributor.authorThompson, I. B.
dc.contributor.authorPych, W.
dc.contributor.authorPoleski, Radosław
dc.date.accessioned2024-01-26T09:59:11Z
dc.date.available2024-01-26T09:59:11Z
dc.date.copyright2018-04-23
dc.date.issued2018
dc.description.accesstimeBEFORE_PUBLICATION
dc.description.financeNie dotyczy
dc.description.number1
dc.description.versionORIGINAL_AUTHOR
dc.description.volume68
dc.identifier.doi10.32023/0001-5237/68.1.3
dc.identifier.issn0001-5237
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/121997
dc.identifier.weblinkhttp://adsabs.harvard.edu/abs/2018AcA....68...63R
dc.languageeng
dc.pbn.affiliationastronomy
dc.relation.ispartofActa Astronomica
dc.relation.pages63-78
dc.rightsOther
dc.sciencecloudnosend
dc.titleThe Cluster AgeS Experiment (CASE). Detecting Aperiodic Photometric Variability with the Friends of Friends Algorithm
dc.typeJournalArticle
dspace.entity.typePublication