Title: Automated classification of Hipparcos unsolved variables
Authors: Rimoldini, L ×
Dubath, P
Suveges, M
Lopez, M
Sarro, L.M.
Blomme, Jonas
De Ridder, Joris
Cuypers, J
Guy, L
Mowlavi, N
Lecoeur-Taibi, L
Beck, M
Jan, A
Nienarotowicz, K
Ordonez-Blanco, D
Lebzelter, T
Eyer, L #
Issue Date: Dec-2012
Publisher: Priestley and Weale
Series Title: Monthly Notices of the Royal Astronomical Society vol:427 issue:4 pages:2917-2937
Abstract: We present an automated classification of stars exhibiting periodic, non-periodic and irregular light variations. The Hipparcos catalogue of unsolved variables is employed to complement the training set of periodic variables of Dubath et al. with irregular and non-periodic representatives, leading to 3881 sources in total which describe 24 variability types. The attributes employed to characterize light-curve features are selected according to their relevance for classification. Classifier models are produced with random forests and a multistage methodology based on Bayesian networks, achieving overall misclassification rates under 12 per cent. Both classifiers are applied to predict variability types for 6051 Hipparcos variables associated with uncertain or missing types in the literature.
ISSN: 0035-8711
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Institute of Astronomy
× corresponding author
# (joint) last author

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