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Moderately close binaries are a special class of targets for planet searches. From a theoretical standpoint, their hospitality to giant planets is uncertain and debated. From an observational standpoint, many of these systems present…

Earth and Planetary Astrophysics · Physics 2015-05-14 A. Eggenberger

We have developed a fully-automated pipeline for systematically identifying and analyzing eclipsing binaries within large datasets of light curves. The pipeline is made up of multiple tiers which subject the light curves to increasing…

Astrophysics · Physics 2009-11-11 Jonathan Devor

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…

Instrumentation and Methods for Astrophysics · Physics 2021-02-01 Dayang N. F. Awang Iskandar , Albert A. Zijlstra , Iain McDonald , Rosni Abdullah , Gary A. Fuller , Ahmad H. Fauzi , Johari Abdullah

We investigate star-galaxy classification for astronomical surveys in the context of four methods enabling the interpretation of black-box machine learning systems. The first is outputting and exploring the decision boundaries as given by…

Instrumentation and Methods for Astrophysics · Physics 2018-09-26 Xan Morice-Atkinson , Ben Hoyle , David Bacon

The classification of galaxies as spirals or ellipticals is a crucial task in understanding their formation and evolution. With the arrival of large-scale astronomical surveys, such as the Sloan Digital Sky Survey (SDSS), astronomers now…

Computer Vision and Pattern Recognition · Computer Science 2023-12-04 Anusha Guruprasad

We present a new few-parameter phenomenological model of light curves of eclipsing binaries and stars with transiting planets that is able to fit the observed light curves with the accuracy better than 1\% of their amplitudes. The model can…

Solar and Stellar Astrophysics · Physics 2015-02-27 Zdeněk Mikulášek , Miloslav Zejda , Theodor Pribulla , Martin Vaňko , Shen-Bang Qian , Li-Ying Zhu

Stellar fundamental properties (masses, radii, effective temperatures) can be extracted from observations of eclipsing binary systems with remarkable precision, often better than 2%. Such precise measurements afford us the opportunity to…

Solar and Stellar Astrophysics · Physics 2015-06-10 Gregory A. Feiden

We present the construction of a novel time-domain signature extraction methodology and the development of a supporting supervised pattern detection algorithm. We focus on the targeted identification of eclipsing binaries that demonstrate a…

Instrumentation and Methods for Astrophysics · Physics 2019-11-12 Kyle B. Johnston , Rana Haber , Saida M. Caballero-Nieves , Adrian M. Peter , V'eronique Petit , Matt Knote

The observed light curves of most eclipsing binaries and stars with transiting planets can be well described and interpreted by current advanced physical models which also allow for the determination of many physical parameters of eclipsing…

Instrumentation and Methods for Astrophysics · Physics 2015-11-18 Zdeněk Mikulášek

We introduce a special class of functions for mathematical modeling of periodic signals of special shape with irregularly spaced arguments. This method was developed for determination of phenomenological characteristics of the light curves,…

Solar and Stellar Astrophysics · Physics 2015-06-11 Ivan L. Andronov

Even though the original Kepler mission ended due to mechanical failures, the Kepler satellite continues to collect data. Using classification models, we can understand the features exoplanets possess and then use those features to…

Earth and Planetary Astrophysics · Physics 2021-01-08 Rohan Saha

We present the catalog of 2580 eclipsing binary stars detected in 4.6 square degree area of the central parts of the Large Magellanic Cloud. The photometric data were collected during the second phase of the OGLE microlensing search from…

In the first three years of operation the Kepler mission found 3,697 planet candidates from a set of 18,406 transit-like features detected on over 200,000 distinct stars. Vetting candidate signals manually by inspecting light curves and…

GAIA observations of eclipsing binary stars will have a large impact on stellar astrophysics. Accurate parameters, including absolute masses and sizes will be derived for $\sim 10^4$ systems, orders of magnitude more than what has ever been…

Astrophysics · Physics 2007-05-23 Tomaz Zwitter

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…

Solar and Stellar Astrophysics · Physics 2023-12-22 A. Tkachenko , K. Pavlovski , N. Serebriakova , D. M. Bowman , L. IJspeert , S. Gebruers , J. Southworth

We present an algorithm that can detect blends of bright stars with fainter, un-associated eclipsing binaries. Such systems contaminate searches for transiting planets, in particular in crowded fields where blends are common. Spectroscopic…

Astrophysics · Physics 2009-11-10 Henk Hoekstra , Yanqin Wu , Andrzej Udalski

Twenty eclipsing binaries were selected for an analysis from a huge database of observations made by the INTEGRAL/OMC camera. The photometric data were processed and analyzed, resulting in a first light-curve study of these neglected…

Astrophysics · Physics 2008-11-12 P. Zasche

The fundamental properties of detached eclipsing binary stars can be measured very accurately, which could make them important objects for constraining the treatment of convection in theoretical stellar models. However, only four or five…

Astrophysics · Physics 2009-11-11 John Southworth , Hans Bruntt

With nearly two billion stars observed and their corresponding astrometric parameters evaluated in the recent Gaia mission, the number of astrometric binary candidates have risen significantly. Due to the surplus of astrometric data, the…

Instrumentation and Methods for Astrophysics · Physics 2024-10-10 Joe Smith
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