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This paper proposes k-medoids clustering method to reveal the distinct groups of 1,318 variable stars in the Galaxy based on their light curves, where each light curve represents the graph of brightness of the star against time. To overcome…

Solar and Stellar Astrophysics · Physics 2020-06-25 Soumita Modak , Tanuka Chattopadhyay , Asis Kumar Chattopadhyay

We have developed a procedure for the classification of eclipsing binaries from their light-curve parameters and spectral type. The procedure was tested on more than 1000 systems with known classification, and its efficiency was estimated…

Solar and Stellar Astrophysics · Physics 2014-09-09 Ekaterina Avvakumova , Oleg Malkov

With the availability of large-scale surveys like Kepler and TESS, there is a pressing need for automated methods to classify light curves according to known classes of variable stars. We introduce a new algorithm for classifying light…

Solar and Stellar Astrophysics · Physics 2022-06-30 Nicholas H. Barbara , Timothy R. Bedding , Ben D. Fulcher , Simon J. Murphy , Timothy Van Reeth

The immense amount of time series data produced by astronomical surveys has called for the use of machine learning algorithms to discover and classify several million celestial sources. In the case of variable stars, supervised learning…

Solar and Stellar Astrophysics · Physics 2022-10-12 R. Pantoja , M. Catelan , K. Pichara , P. Protopapas

Identification of anomalous light curves within time-domain surveys is often challenging. In addition, with the growing number of wide-field surveys and the volume of data produced exceeding astronomers ability for manual evaluation,…

Instrumentation and Methods for Astrophysics · Physics 2020-09-30 Sara Webb , Michelle Lochner , Daniel Muthukrishna , Jeff Cooke , Chris Flynn , Ashish Mahabal , Simon Goode , Igor Andreoni , Tyler Pritchard , Timothy M. C. Abbott

We present an application of computer vision methods to classify the light curves of eclipsing binaries (EB). We have used pre-trained models based on convolutional neural networks ($\textit{ResNet50}$) and vision transformers…

Computer Vision and Pattern Recognition · Computer Science 2025-08-19 Štefan Parimucha , Maksim Gabdeev , Yanna Markus , Martin Vaňko , Pavol Gajdoš

Close binary stars are binary stars where the component stars are close enough such that they can exchange mass and/or energy. They are subdivided into semi-detached, overcontact or ellipsoidal binary stars. A challenging problem in the…

Solar and Stellar Astrophysics · Physics 2020-01-08 Sandip V. George , R. Misra , G. Ambika

Context. Understanding the formation and evolution of star clusters in the Milky Way requires precise identification of clusters that form binary or multiple systems. Such systems offer valuable insight into the dynamical processes and…

Astrophysics of Galaxies · Physics 2025-01-22 Tali Palma , Valeria Coenda , Gustavo Baume , Carlos Feinstein

We present an image classification algorithm using deep learning convolutional neural network architecture, which classifies the morphologies of eclipsing binary systems based on their light curves. The algorithm trains the machine with…

Solar and Stellar Astrophysics · Physics 2023-06-06 Burak Ulas

Recent studies indicate that the physical properties of eclipsing binaries can be extracted from the derivatives of their light curves. A classification scheme for the derivatives of light curves would be helpful for identifying key…

Solar and Stellar Astrophysics · Physics 2025-05-28 Shinjirou Kouzuma

We present the results of an automated variability analysis of the Kepler public data measured in the first quarter (Q1) of the mission. In total, about 150 000 light curves have been analysed to detect stellar variability, and to identify…

Solar and Stellar Astrophysics · Physics 2015-05-27 J. Debosscher , J. Blomme , C. Aerts , J. De Ridder

In the last couple of decades, tremendous progress has been achieved in developing robotic telescopes and, as a result, sky surveys (both terrestrial and space) have become the source of a substantial amount of new observational data. These…

Solar and Stellar Astrophysics · Physics 2021-08-04 Michal Čokina , Viera Maslej-Krešňáková , Peter Butka , Štefan Parimucha

Results of an archival survey are presented using B-band imaging of the eastern spiral arm of M31. Focusing on the eclipsing binary star population, a matched-filter technique has been used to identify 280 binary systems. Of these, 127…

Astrophysics · Physics 2007-05-23 Ian Todd , Don Pollacco , Ian Skillen , D. M. Bramich , Steve Bell , Thomas Augusteijn

Traditional studies of stellar clusters in external galaxies use surface photometry and therefore focus on systems that are still bright and compact enough to be separated from the stellar background. Consequently, the latter stages of…

Astrophysics · Physics 2007-05-23 Anne Pellerin , Martin Meyer , Jason Harris , Daniela Calzetti

Based on over 5400 BV images of 47 Tuc collected between 1998 and 2010 we obtained light curves of 65 variables, 21 of which are newly detected objects. New variables are located mostly just outside of the core in a region poorly studied by…

Solar and Stellar Astrophysics · Physics 2014-05-26 J. Kaluzny , M. Rozyczka , W. Pych , W. Krzeminski , K. Zloczewski , W. Narloch

Eclipsing binary star systems provide the most accurate method of measuring both the masses and radii of stars. Moreover, they enable testing tidal synchronization and circularization theories, as well as constraining models of stellar…

Astrophysics · Physics 2008-11-04 Jonathan Devor

We describe a new neural-net based light curve classifier and provide it with documentation as a ready-to-use tool for the community. While optimized for identification and classification of eclipsing binary stars, the classifier is general…

Instrumentation and Methods for Astrophysics · Physics 2015-06-22 M. Paegert , K. G. Stassun , D. M. Burger

We propose a model-based clustering algorithm for a general class of functional data for which the components could be curves or images. The random functional data realizations could be measured with error at discrete, and possibly random,…

Machine Learning · Statistics 2022-03-14 Steven Golovkine , Nicolas Klutchnikoff , Valentin Patilea

The success of automatic classification of variable stars strongly depends on the lightcurve representation. Usually, lightcurves are represented as a vector of many statistical descriptors designed by astronomers called features. These…

Solar and Stellar Astrophysics · Physics 2016-04-13 Cristóbal Mackenzie , Karim Pichara , Pavlos Protopapas

Eclipsing binaries provide one of the most direct mechanisms for measuring stellar properties such as mass and radius, but historically, determining these properties has been non-trivial and computationally prohibitive. As such, only a…

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