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We present a new, fast, and easy to use tool for modelling light and radial velocity curves of close eclipsing binaries with built-in methods for solving an inverse problem. The main goal of ELISa (Eclipsing binary Learning and Interactive…

天体物理仪器与方法 · 物理学 2021-09-01 Michal Čokina , Miroslav Fedurco , Štefan Parimucha

In recent years the amount of publicly available astronomical data has increased exponentially, with a remarkable example being large scale multiepoch photometric surveys. This wealth of data poses challenges to the classical methodologies…

天体物理仪器与方法 · 物理学 2024-11-12 N. Monsalves , M. Jaque Arancibia , A. Bayo , P. Sánchez-Sáez , R. Angeloni , G Damke , J. Segura Van de Perre

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

This study investigate the effectiveness of using Deep Learning (DL) for the classification of planetary nebulae (PNe). It focusses on distinguishing PNe from other types of objects, as well as their morphological classification. We adopted…

Using the data from the public database of the All Sky Automated Survey ({\tt ASAS}) we performed the very first light curve analyses of the three eclipsing binary systems \astrobj{AO~Aqr}, \astrobj{CW~Aqr} and \astrobj{ASAS~012206-4924.7}.…

太阳与恒星天体物理 · 物理学 2015-05-15 Burak Ulas , Ceren Ulusoy

We introduce a new machine learning based technique to detect exoplanets using the transit method. Machine learning and deep learning techniques have proven to be broadly applicable in various scientific research areas. We aim to exploit…

地球与行星天体物理 · 物理学 2022-01-05 Abhishek Malik , Benjamin P. Moster , Christian Obermeier

We present 370 candidate eclipsing binaries (EBs), identified from ~510,000 short cadence TESS light curves. Our statistical criteria identify 5,105 light curves with features consistent with eclipses (~1% of the initial sample). After…

太阳与恒星天体物理 · 物理学 2022-05-31 Erin L. Howard , James R. A. Davenport , Kevin R. Covey

Large repositories of high precision light curve data, such as the Kepler data set, provide the opportunity to identify astrophysically important eclipsing binary (EB) systems in large quantities. However, the rate of classical "by eye"…

太阳与恒星天体物理 · 物理学 2018-09-21 Mahmoud Parvizi , Martin Paegert , Keivan G. Stassun

ASAS is a long term project to monitor bright variable stars over the whole sky. It has discovered 50,122 variables brighter than V < 14 mag south of declination +28 degrees, and among them 11,099 eclipsing binaries. We present a…

天体物理学 · 物理学 2009-11-11 B. Paczynski , D. Szczygiel , B. Pilecki , G. Pojmanski

Detached eclipsing binary stars (dEBs) are a key source of data on fundamental stellar parameters. Within the light curve databases of survey missions such as Kepler and TESS are a wealth of new systems awaiting characterisation. We aim to…

天体物理仪器与方法 · 物理学 2025-10-27 Stephen Overall , John Southworth

Abstract abridged. Eclipsing binary systems provide the opportunity to measure the fundamental parameters of their component stars in a stellar-model-independent way. This makes them ideal candidates for testing and calibrating theories of…

天体物理仪器与方法 · 物理学 2024-02-12 Luc W. IJspeert , Andrew Tkachenko , Cole Johnston , Andrej Prša , Mark A. Wells , Conny Aerts

The orbital inclination of an eclipsing binary is generally determined through light curve analysis. Binary parameters in the light curve analysis are typically constrained through the use of optimization and sampling techniques. We propose…

太阳与恒星天体物理 · 物理学 2026-04-08 Shinjirou Kouzuma

We present new photometric observations of the $\beta$ Lyrae-type eclipsing binary systems NSVS 7322420 and NSVS 5726288. These observations represent the first multi-band photometry performed on these systems. The light curves were…

太阳与恒星天体物理 · 物理学 2019-10-18 Matthew F. Knote , Ronald H. Kaitchuck , Robert C. Berrington

In-depth analysis of eclipsing binary (EB) observational data collected for several decades can inform us about a lot of astrophysically interesting processes taking place in the systems. We have developed a wide-ranging method for the…

天体物理仪器与方法 · 物理学 2014-03-05 Zdeněk Mikulášek , Miloslav Zejda , Marek Chrastina , ShengBang Qian , LiYing Zhu

In the first paper of this series we presented EBAS, a new fully automated algorithm to analyse the lightcurves of eclipsing binaries, based on the EBOP code. Here we apply the new algorithm to the whole sample of 2580 binaries found in the…

天体物理学 · 物理学 2009-11-11 Tsevi Mazeh , Omer Tamuz , Pierre North

For more than three years now we have been conducting a spectroscopic survey of detached eclipsing binaries (DEBs) from the All-Sky Automated Survey (ASAS) database. Thousands of high-resolution spectra of over 300 systems were secured, and…

太阳与恒星天体物理 · 物理学 2015-03-02 K. G. Hełminiak , M. Konacki , M. Ratajczak , A. Jordán , N. Espinoza , R. Brahm , E. Kambe , N. Ukita

We present the results of our study of the eclipsing binary systems CSS J112237.1+395219, LINEAR 1286561 and LINEAR 2602707 based on new CCD $B$, $V$, $R_c$ and $I_c$ complete light curves. The ultra-short period nature of the stars…

太阳与恒星天体物理 · 物理学 2020-05-06 F. Acerbi , R. Michel , C. Barani , M. Martignoni , L. Fox-Machado

The Transiting Exoplanet Survey Satellite (TESS) mission measured light from stars in ~75% of the sky throughout its two year primary mission, resulting in millions of TESS 30-minute cadence light curves to analyze in the search for…

Methods. We used different galaxy classification techniques: human labeling, multi-photometry diagrams, Naive Bayes, Logistic Regression, Support Vector Machine, Random Forest, k-Nearest Neighbors, and k-fold validation. Results. We present…

星系天体物理 · 物理学 2021-06-09 I. B. Vavilova , D. V. Dobrycheva , M. Yu. Vasylenko , A. A. Elyiv , O. V. Melnyk , V. Khramtsov

A comparative analysis of the special shapes (patterns, profiles) of the eclipses applied for the phenomenological modeling of the light curves of eclipsing binary stars is conducted. Families of functions are considered, generalizing local…

太阳与恒星天体物理 · 物理学 2017-04-19 Ivan L. Andronov , Mariia G. Tkachenko , Lidia Chinarova