Results 41 to 50 of about 1,027 (203)
The Evolutionary Statuses of Solar Type Detached Eclipsing Binary Stars [PDF]
Journal of Astronomy and Space Sciences, 2012 We presented fundamental stellar parameters and evolutionary statuses of six solar type detached eclipsing binaries whose masses are in the range of 0.97-1.43 M⊙. EK Cep and FL Lyr belong to the zero age main sequence.
Chanisa Kanjanascul +5 more
doaj +1 more source
SDSS J0926+3624: the shortest period eclipsing binary star [PDF]
Monthly Notices of the Royal Astronomical Society, 2010 Accepted for publication in MNRAS. 19 pages, including 15 figures and 6 tables.
Copperwheat, C.M. +14 more
openaire +10 more sources
The Astronomical Journal, 2023 We present a detailed analysis of an eclipsing double-lined binary FX UMa based on TESS photometry and newly acquired spectroscopic observations. The radial velocities and atmospheric parameters for each component star are obtained from the SONG high ...
Kun Wang +5 more
doaj +1 more source
ABSOLUTE PROPERTIES OF THE ECLIPSING BINARY STAR V501 HERCULIS [PDF]
The Astronomical Journal, 2014 V501 Her is a well detached G3 eclipsing binary star with a period of 8.597687 days for which we have determined very accurate light and radial-velocity curves by using robotic telescopes. Results of these data indicate that the component stars have masses of 1.269 +/- 0.004 and 1.211 +/- 0.003 solar masses, radii of 2.001 +/- 0.003 and 1.511 +/- 0.003
Francis C. Fekel +2 more
openaire +2 more sources
Modelling of W UMa-type variable stars
South African Journal of Science, 2009 W Ursae Majoris (W UMa)-type variable stars are over-contact eclipsing binary stars. To understand how these systems form and evolve requires observations spanning many years, followed by detailed models of as many of them as possible.
P. Skelton, D. Smits
doaj
Light Curves and Period Analysis of Beta Lyrae Stars
The Astronomical Journal, 2023 We present the light-curve period analysis of 36 Beta Lyrae stars from the OMC Archive. We check the reference period of the sample by applying the phase dispersion minimization periodogram.
C. C. Cortés +3 more
doaj +1 more source
ABSOLUTE PROPERTIES OF THE ECLIPSING BINARY STAR AP ANDROMEDAE [PDF]
The 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 +4 more sources
A Reflection Model for Eclipsing Binary Stars [PDF]
Monthly 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 +2 more sources
The Astronomical Journal, 2023 We report on a detailed abundance study of six bright, mostly southern, slowly rotating late B-stars: HD 1279 (B8III), HD 99803 (B9V), HD 123445 (B9V), HD 147550 (B9V), HD 171961 (B8III), and HD 202671 (B5II/III), hitherto reported as normal stars.
Richard Monier +12 more
doaj +1 more source
KM UMa: An Active Short-period Detached Eclipsing Binary in a Hierarchical Quadruple System
The Astrophysical JournalThe first detailed photometric and spectroscopic analysis of the G-type eclipsing binary KM UMa is presented, which indicates that the system is a short-period detached eclipsing binary.
Fangbin Meng +6 more
doaj +1 more source