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Pulsations and binarity are both common features of massive stars. The study of pulsating massive stars in eclipsing binary systems hold great potential for constraining stellar structure and evolution theory. However, prior to the all-sky…

太阳与恒星天体物理 · 物理学 2022-04-13 John Southworth , Dominic M. Bowman

The advent of large scale multi-epoch surveys raises the need for automated light curve (LC) processing. This is particularly true for eclipsing binaries (EBs), which form one of the most populated types of variable objects. The Gaia…

Many moons have been detected around planets in our Solar System, but none has been detected unambiguously around any of the confirmed extrasolar planets. We test the feasibility of a supervised convolutional neural network to classify…

地球与行星天体物理 · 物理学 2020-08-12 Rasha Alshehhi , Kai Rodenbeck , Laurent Gizon , Katepalli R. Sreenivasan

In this paper a high speed neural network classifier based on extreme learning machines for multi-label classification problem is proposed and dis-cussed. Multi-label classification is a superset of traditional binary and multi-class…

机器学习 · 计算机科学 2016-09-06 Meng Joo Er , Rajasekar Venkatesan , Ning Wang

The availability of a robust and efficient routine for calculating light curves of a finite source magnified due to bending its light by the gravitational field of an intervening binary lens is essential for determining the characteristics…

天体物理学 · 物理学 2008-11-26 M. Dominik

Next-generation synoptic photometric surveys will yield unprecedented (for the astronomical community) volumes of data and the processes of discovery and rare-object identification are, by necessity, becoming more autonomous. Such…

太阳与恒星天体物理 · 物理学 2014-04-08 Isaac Shivvers , Joshua S. Bloom , Joseph W. Richards

The transit method is one of the most relevant exoplanet detection techniques, which consists of detecting periodic eclipses in the light curves of stars. This is not always easy due to the presence of noise in the light curves, which is…

When multiple star-forming gas structures overlap along the line-of-sight and emit optically thin emission at significantly different radial velocities, the emission can become non-Gaussian and often exhibits two distinct peaks. Traditional…

太阳与恒星天体物理 · 物理学 2020-01-08 Jared Keown , James Di Francesco , Hossen Teimoorinia , Erik Rosolowsky , Michael Chun-Yuan Chen

Eclipsing binaries (EBs) provide critical laboratories for empirically testing predictions of theoretical models of stellar structure and evolution. Pre-main-sequence (PMS) EBs are particularly valuable, both due to their rarity and the…

Photometric data-driven classification of supernovae becomes a challenge due to the appearance of real-time processing of big data in astronomy. Recent studies have demonstrated the superior quality of solutions based on various machine…

Detecting deepfake images is crucial in combating misinformation. We present a lightweight, generalizable binary classification model based on EfficientNet-B6, fine-tuned with transformation techniques to address severe class imbalances. By…

We have compiled a catalogue of eclipsing variable stars, the largest catalogue, containing classified eclipsing binaries. A procedure for the classification of eclipsing binaries, based on the catalogued data, is also developed. It was…

太阳与恒星天体物理 · 物理学 2013-06-20 Oleg Malkov , Ekaterina Avvakumova

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…

太阳与恒星天体物理 · 物理学 2020-01-08 Sandip V. George , R. Misra , G. Ambika

Concerned with the reliability of neural networks, researchers have developed verification techniques to prove their robustness. Most verifiers work with real-valued networks. Unfortunately, the exact (complete and sound) verifiers face…

人工智能 · 计算机科学 2020-10-28 Kai Jia , Martin Rinard

A efficient incremental learning algorithm for classification tasks, called NetLines, well adapted for both binary and real-valued input patterns is presented. It generates small compact feedforward neural networks with one hidden layer of…

人工智能 · 计算机科学 2009-04-30 Juan-Manuel Torres-Moreno , Mirta B. Gordon

Abridged. Eclipsing spectroscopic double-lined binaries are the prime source of precise and accurate measurements of masses and radii of stars. These measurements provide a stringent test of models of stellar evolution that are persistently…

太阳与恒星天体物理 · 物理学 2023-12-22 A. Tkachenko , K. Pavlovski , N. Serebriakova , D. M. Bowman , L. IJspeert , S. Gebruers , J. Southworth

Accurate limb-darkening models are needed for accurate characterisation of eclipsing binary stars and transiting exoplanets from the analysis of their light curves. The limb-darkening observed in solar-type stars from the analysis of light…

太阳与恒星天体物理 · 物理学 2025-02-14 Jay Fitzpatrick , Pierre F. L. Maxted , Alix V. Freckelton , Amuary H. M. J. Triaud , David V. Martin , Alison Duck

We present the most precise light curve ever obtained of a detached eclipsing binary star and use it investigate the inclusion of non-linear limb darkening laws in eclipsing binary light curve models. This light curve, of the bright system…

天体物理学 · 物理学 2014-10-13 John Southworth , Hans Bruntt , Derek L. Buzasi

Traditional network embedding primarily focuses on learning a continuous vector representation for each node, preserving network structure and/or node content information, such that off-the-shelf machine learning algorithms can be easily…

社会与信息网络 · 计算机科学 2023-01-02 Daokun Zhang , Jie Yin , Xingquan Zhu , Chengqi Zhang

We apply machine learning techniques in an attempt to predict and classify stellar properties from noisy and sparse time series data. We preprocessed over 94 GB of Kepler light curves from MAST to classify according to ten distinct physical…

天体物理仪器与方法 · 物理学 2018-06-27 Trisha Hinners , Kevin Tat , Rachel Thorp