Results 101 to 110 of about 126,948 (196)

BSN: The First Photometric Study of 10 Contact Binary Systems from the Northern and Southern Hemispheres

open access: yesThe Astronomical Journal
Photometric observations were made with standard filters in four observatories for 10 contact binary systems. We analyzed the orbital period variations of the systems and found that six of them show long-term changes.
Atila Poro   +9 more
doaj   +1 more source

Investigating Period Variability Mechanisms in Eclipsing Binary Stars through Eclipsing Time Variation Analysis: A Case Study of TZ Bootis

open access: yesThe Astrophysical Journal
We present an effective strategy for extensive analysis of eclipsing time variations (ETVs) using modern and sophisticated optimization methods that comprise a set of tools to investigate period variability mechanisms in eclipsing binary stars such as ...
Konstantinos Zervas   +2 more
doaj   +1 more source

A Neural-network Model for Quickly Solving Multiple-band Light Curves of Contact Binaries

open access: yesThe Astrophysical Journal Supplement Series
The advent of large-scale photometric surveys has led to the discovery of over one million contact binary systems. Conventional light-curve analysis methods are no longer adequate for handling such massive data sets.
Kai Li, Li-Heng Wang, Xiang Gao
doaj   +1 more source

Exploring Contact Binaries: Observational Analysis of Four W Uma Binaries Using Photometry and Spectroscopy

open access: yesThe Astrophysical Journal
We present the multiband photometric and low-resolution spectroscopic analysis of four W Ursae Majoris eclipsing binaries (EWs)—J080510.1+141528 (hereinafter as J0805a), J080516.3+143138 (hereinafter as J0805b), J143358.7+053953 (hereinafter as J1433 ...
A. Panchal   +3 more
doaj   +1 more source

The ASAS-SN catalogue of variable stars – VII. Contact binaries are different above and below the Kraft break [PDF]

open access: bronze, 2020
T. Jayasinghe   +13 more
openalex   +1 more source

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