Results 81 to 90 of about 1,089,644 (224)

Phemenological Modeling of Eclipsing Binary Stars

open access: yes, 2016
We review the method NAV (New Algol Variable) first introduced in 2012Ap.....55..536A, which uses the locally-dependent shapes of eclipses in an addition to the trigonometric polynomial of the second order (which typically describes the "out-of-eclipse" part of the light curve with effects of reflection, ellipticity and O'Connell).
Andronov, Ivan L.   +2 more
openaire   +2 more sources

A Reflection Model for Eclipsing Binary Stars [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1973
A highly accurate reflection model has been developed which emphasizes efficiency of computer calculation. It is assumed that the heating of the irradiated star must depend upon the following properties of the irradiating star: (1) effective temperature; (2) apparent area as seen from a point on the surface of the irradiated star; (3) limb darkening ...
openaire   +1 more source

Infrared photometry of eclipsing binary stars.

open access: yes, 1978
The infrared observations of several eclipsing binary stars are presented and discussed. Initially a brief review of the relevant literature is given together with a description of binary systems, in particular eclipsing binary stars. This is followed by
R. Akinci (7699997)
core   +3 more sources

TESS Photometry and LAMOST Spectroscopy of 10 Detached Eclipsing Binaries

open access: yesThe Astronomical Journal
This study presents a thorough analysis of 10 detached eclipsing binaries that contain main-sequence stars. We have utilized a multifaceted approach, incorporating data from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST), TESS ...
Mengxin Wang   +9 more
doaj   +1 more source

Detection of Contact Binary Candidates Observed By TESS Using the Autoencoder Neural Network

open access: yesThe Astronomical Journal
A contact binary may be the progenitor of a red nova that eventually produces a merger event and have a cut-off period of around 0.2 days. Therefore, a large number of contact binaries is needed to search for the progenitor of red novae and to study the ...
Xu Ding   +3 more
doaj   +1 more source

Fundamental Parameters for Totally Eclipsing Contact Binaries Observed by TESS

open access: yesThe Astrophysical Journal
Totally eclipsing contact binaries provide a unique opportunity to accurately determine mass ratios through photometric methods alone, eliminating the need for spectroscopic data.
Xu Ding   +7 more
doaj   +1 more source

The Evolution of the Supersoft X-Ray Source WX Cen Dominated by Magnetic Wind

open access: yesThe Astrophysical Journal, 2023
WX Cen is most likely one of the Galactic counterparts of compact binary supersoft X-ray sources as a member of the V Sagittae class, in which mass is transferred from a donor secondary to a massive white dwarf primary via an accretion disk. Based on the
Lei Zang   +2 more
doaj   +1 more source

ABSOLUTE PROPERTIES OF THE ECLIPSING BINARY STAR AP ANDROMEDAE [PDF]

open access: yesThe Astronomical Journal, 2014
AP And is a well-detached F5 eclipsing binary star for which only a very limited amount of information was available before this publication. We have obtained very extensive measurements of the light curve (19097 differential V magnitude observations) and a radial velocity curve (83 spectroscopic observations) which allow us to fit orbits and determine
Claud H. Sandberg Lacy   +3 more
openaire   +2 more sources

Study of Eclipsing Binary and Multiple Systems in OB Associations III: A Progress Report [PDF]

open access: yes, 2015
Conference on Living Together: Planets, Host Stars and Binaries -- SEP 08-12, 2014 -- Litomysl, CZECH REPUBLICOur international collaboration is devoted to the observation and analysis of young eclipsing binary and multiple systems in various OB ...
Nitschelm, Christian   +5 more
core   +1 more source

TESS Light Curve of the Interacting Binary W Serpentis

open access: yesThe Astronomical Journal
The unusal light curve of the massive eclipsing binary W Ser was recently observed with high S/N and fast cadence by the NASA TESS mission. The TESS light curve records two eclipses and relatively fast variations outside of the eclipses.
Douglas R. Gies   +3 more
doaj   +1 more source

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