Results 31 to 40 of about 1,089,644 (224)

A Search for Exoplanets in Short-Period Binary Star Systems [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2012
This paper reports the progress of a search for exoplanets with S-type orbits in short-period binary star systems. The selected targets have stellar orbital periods of just a few days. These systems are eclipsing binaries so that exoplanet transits, if
Ronald Kaitchuck   +2 more
doaj   +1 more source

Eclipsing binaries observed with the WIRE satellite. II, β Aurigae and non-linear limb darkening in light curves [PDF]

open access: yes, 2007
Aims. We present the most precise light curve ever obtained of a detached eclipsing binary star and use it investigate the inclusion of non-linear limb darkening laws in light curve models of eclipsing binaries.
Southworth, J. (John)   +5 more
core   +1 more source

ECLIPSING BINARY STARS AS BENCHMARKS FOR TRIGONOMETRIC PARALLAXES IN THE GAIA ERA [PDF]

open access: yes, 2016
We present fits to the broadband photometric spectral energy distributions (SEDs) of 158 eclipsing binaries (EBs) in the Tycho-2 catalog. These EBs were selected because they have highly precise stellar radii, effective temperatures, and in many cases ...
K. Stassun, G. Torres
semanticscholar   +1 more source

Comparative Analysis of Phenomenological Approximations for the Light Curves of Eclipsing Binary Stars with Additional Parameters [PDF]

open access: yesAstrophysics, 2016
A comparative analysis is made of special profiles of eclipses used for phenomenological modelling of the light curves of eclipsing binary stars. Families of functions which generalize local approximations and functions which are theoretically unlimited ...
I. Andronov, M. Tkachenko, L. Chinarova
semanticscholar   +1 more source

Candidate Eclipsing Binary Systems with a δ Scuti Star in Northern TESS Field [PDF]

open access: yesResearch in Astronomy and Astrophysics, 2022
The existence of pulsating stars in eclipsing binaries has been known for decades. These types of objects are extremely valuable systems for astronomical studies as they exhibit both eclipse and pulsation variations.
Filiz Kahraman Aliçavuş   +6 more
semanticscholar   +1 more source

Turbulence in the Atmospheres of Eclipsing Binary Stars [PDF]

open access: yesInternational Astronomical Union Colloquium, 1980
Abstract:A review of the orbits and dimensions of the ζ Aurigae systems is given, based on photometric and spectrographic observations. The Ca II K-line has been studied intensively to determine the extent and uneven structure of the chromospheres of these stars; the multiple structure of this line observed at several eclipses confirms the presence of ...
openaire   +1 more source

A quintuple star system containing two eclipsing binaries [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2016
13 pages, 11 figures; submitted to MNRAS on 2016, May 20, revised June ...
Rappaport, S.   +14 more
openaire   +9 more sources

KEPLER ECLIPSING BINARY STARS. VIII. IDENTIFICATION OF FALSE POSITIVE ECLIPSING BINARIES AND RE-EXTRACTION OF NEW LIGHT CURVES [PDF]

open access: yes, 2016
The Kepler mission has provided unprecedented, nearly continuous photometric data of ∼200,000 objects in the ∼105 deg2 field of view (FOV) from the beginning of science operations in May of 2009 until the loss of the second reaction wheel in May of 2013.
M. Abdul-Masih   +11 more
semanticscholar   +1 more source

HD 46407: The First Eclipsing-Binary Barium Star [PDF]

open access: yesSymposium - International Astronomical Union, 1992
A long-term, high-accuracy, differential uvby monitoring of a sample of 19 barium stars revealed that HD 46407, a well known barium star with an orbital period of 458 d, is an eclipsing binary. The eclipse (of the companion by the barium star) was most clearly seen in November 1988, when a dip of 0.02 mag (in y) having a FWHM of about 10 d was recorded
Jorissen, A.   +2 more
openaire   +3 more sources

DETERMINING THE AGE OF THE KEPLER OPEN CLUSTER NGC 6819 WITH A NEW TRIPLE SYSTEM AND OTHER ECLIPSING BINARY STARS [PDF]

open access: yes, 2016
As part of our study of the old (∼2.5 Gyr) open cluster NGC 6819 in the Kepler field, we present photometric (Kepler and ground-based BVRCIC) and spectroscopic observations of the detached eclipsing binary WOCS 24009 (Auner 665; KIC 5023948) with a short
L. N. Brewer   +12 more
semanticscholar   +1 more source

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