Binary stars
Photometric Analysis of Eclipsing Binary Stars
... of binary stars is vitally important in astronomy because it is only by carefully measuring the interactions between stars that we can accurately determine their absolute characteristics such as ...
10
The formation, evolution, and survivability of discs around young binary stars
... inner binary orbit by the process of Kozai-Lidov cycles and tidal friction, hindering the formation or stability of circumbinary ...inner binary hosting a circumbinary ...
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Analytical Approximation to the Dynamics of a Binary Stars System with Time Depending Mass Variation
... of binary stars when there is an interchange of mass between ...the stars is more massive than others, the dynamics of the lighter one is analyzed as a function of its time depending mass ...
7
Observations of binary stars with the differential speckle survey instrument. IV. Observations of Kepler, CoRoT, and Hipparcos stars from the Gemini North Telescope
... more stars, and Table 2 contains high-quality ...two stars (ρ) in arcseconds; (8) the magnitude difference (Δ m); (9) the cen- ter wavelength of the filter used in nm; and (10) the FWHM of the filter ...
10
Testing Gravity with Wide Binary stars like α Centauri
... wide binary stars whose very low orbital accelerations fall below the MOND a 0 ...each binary was in one of the stars, though this assumption should not much affect forces in the Solar ...
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Observations of binary stars with the differential speckle survey instrument. II. Hipparcos stars observed in 2010 January and June
... more stars, and Table 2 contains the ...two stars (ρ), in arcseconds; (8) the magnitude difference (Δ m) of the pair in the 562 nm filter; and (9) the magnitude difference of the pair in the 692 nm ...of ...
13
General Relativistic Orbital Effects in Compact Binary Stars (Solution by the Method of Celestial Mechanics)
... Perturbation methods are employed to calculate time variation in the orbital elements of a compact binary system. It turns out that the semi-major axis and eccentricity exhibit only periodic variations. The ...
10
A search for binary stars using speckle interferometry
... Binary stars are detected by observing newly discovered double stars over a long period of time to see if the secondary star in the system is moving around the ...a binary system travels in an ...
20
Spectroscopic Analysis of Eclipsing Binary Stars
... of binary stars is vitally important in astronomy because it is only by carefully measuring the interactions between stars that we can accurately determine their absolute characteristics such as ...
8
Observations of binary stars with the differential speckle survey instrument. V. Toward an empirical metal-poor mass-luminosity relation
... metal-poor stars, the Gemini North telescope was used on two occasions to take speckle imaging data of a sample of known spectroscopic binary stars and other nearby stars in order to search ...
14
Observations of binary stars with the differential speckle survey instrument. III. Measures below the diffraction limit of the WIYN telescope
... We have analyzed a significant sample of sub-diffraction- limited measures of binary stars taken at the WIYN 3.5 m Telescope over the last several years. These data show that, under certain conditions, it ...
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TIMES OF MINIMA OF SOME ECLIPSING BINARY STARS WITH ECCENTRIC ORBIT IN THE KEPLER FIELD
... Method of minimum determination: The minima times were computed with the Kwee-van Woerden method Kwee & van Woerden, 1956.. Remarks: We present 517 minima times of 6 eclipsing binaries w[r] ...
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TIMES OF MINIMA OF SOME ECLIPSING BINARY STARS WITH ECCENTRIC MINIMA IN THE KEPLER FIELD II.
... This paper is a continuation of the work published in IBVS 6219 (Bulut, 2017). In this study, we present 1086 minima times of 6 eclipsing binaries with eccentric orbit. The eclipse-timing variation O–C curves of the ...
27
Estimating the space density of ultracompact binary stars
... The addition of long baseline light curves for 90 per cent of our candidates could prove very useful for prioritising future follow-up spectroscopy. Candidates that show behaviour similar to outbursts in their ...
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Accurate astrophysical parameters for algol type binary stars
... these stars causing an error in the measured radial ...program stars to be affect in this m anner because the longer exposure times and the use of an auto-guider should have provided uniform illumination of ...
151
Gravity in View of the Theory of Orbiting Binary Stars
... the formula (2), we get again (3). The above presented well known theory does not explain the phenomenon of inspiral. The famous observations by Taylor and Hulse [4] [5] [6], of the binary pulsar PSR1913+16 have ...
16
Studies of low mass interacting binary stars
... But some systems (predominantly the W-types) clearly contain unevolved main sequence components. Two different approaches have been taken to model such sys tems. The Contact Discontinuity (DSC) Theory sought to build an ...
289
Orbital parameters estimation for compact binary stars
... & McClintock 2006). This criterion led to ∼ 20 confirmed black hole systems and a compara- ble number of black hole candidates, based on a similar X-ray timing and spectral behaviour (Casares & Jonker, 2014). 4U ...
165
Prominences and magnetic activity on young single and binary stars
... both stars equally, the ratio of the amplitudes of the field strengths recovered between the primary and secondary stars remained similar for the subset of 2007 ...
224
Accretion flows in compact binary stars
... The data have been normalized to the continuum so that zero corresponds to the continuum level and one to twice the continuum level... To verify this I have calcu[r] ...
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