First study of a low-amplitude eclipsing binary KIC11496078

Soomandar, Somayeh; Abedi, Abbas

doi:10.1016/j.newast.2020.101394

Cited by 4 publications

(3 citation statements)

References 59 publications

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“…To find the initial guess of the orbital parameters of KIC 9026766, we performed an automated q-search in the same way done by Soomandar & Abedi (2020). The Wilson-Devinney code was imported as a subroutine to Matlab, and the least square method was used to obtain the initial guess of the parameters.…”

Section: Light Curve Solutionmentioning

confidence: 99%

First investigation of eclipsing binary KIC 9026766: analysis of light curve and periodic changes

Soomandar,

Abedi

2021

Preprint

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We investigate a short-period W UMa binary KIC 9026766 with an orbital period of 0.2721278 days in the Kepler field of view. By using an automated q-search for the folded light curve and producing a synthetic light curve for this object based on the PHOEBE code, we calculate the fundamental stellar parameters. We also analyze the O-C curve of the primary minima. The orbital period changes can be attributed to the combination of an upward quadratic function and light-travel time effect due to a possible third body with a minimum mass of 0.029M and an orbital period of 972.5866 ± 0.0041 days. The relative luminosity of the primary and secondary eclipses (Min I -Min II) is calculated. The periodogram of the residuals of the LTT effect, and Min I -Min II show peaks with the same period of 0.8566 days. The background effect of two nearby stars on our target is the possible reason for this signal. By considering the amplitudes and periods of the remaining signals in the O-C curve of minima, spot motion is possible.

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Section: Light Curve Solutionmentioning

confidence: 99%

First investigation of eclipsing binary KIC 9026766: analysis of light curve and periodic changes

Soomandar,

Abedi

2021

Preprint

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show abstract

“…To find the initial guess of the orbital parameters of KIC 9026766, we performed an automated q-search in the same way as done by Soomandar & Abedi (2020). The O b s e r v a t i o n d a t a p o i n t s S y n t h e t i c l i g h t c u r v e R e s i d u a l s R e l a t i v e F l u x P h a s e Fig.…”

Section: Light Curve Solutionmentioning

confidence: 99%

“…The observed minima were calculated by fitting a Lorentzian function to the individual minima in the same way as done by Soomandar & Abedi (2020). To find the initial parameters of the Lorentzian function, we used the maximum and minimum relative flux and mean Barycentric Julian Date for an individual eclipse.…”

Section: Measuring Minimamentioning

confidence: 99%

First investigation of eclipsing binary KIC 9026766: analysis of light curve and periodic changes

Soomandar

Abedi²

2021

Res. Astron. Astrophys.

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We investigate a short-period W UMa binary KIC 9026766 with an orbital period of 0.2721278d in the Kepler field of view. By applying an automated q-search for the folded light curve and producing a synthetic light curve for this object based on the PHOEBE code, we calculate the fundamental stellar parameters. We also analyze the O − C curve of the primary minima. The orbital period changes can be attributed to the combination of an upward quadratic function and light-travel time effect (LTTE) due to a possible third body with a minimum mass of 0.029 M ⊙ and an orbital period of 972.5866 ±0.0041d. The relative luminosity of the primary and secondary eclipses (Min I − Min II) is calculated. The periodogram of the residuals of the LTTE and Min I − Min II show peaks with the same period of 0.8566d. The background effect of two nearby stars on our target is the possible reason for this signal. By considering the amplitudes and periods of the remaining signals in the O − C curve of minima, spot motion is possible.

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A new look at the YY CrB binary system

Soomandar,

Poro

2024

New Astronomy

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First study of a low-amplitude eclipsing binary KIC11496078

Cited by 4 publications

References 59 publications

First investigation of eclipsing binary KIC 9026766: analysis of light curve and periodic changes

First investigation of eclipsing binary KIC 9026766: analysis of light curve and periodic changes

First investigation of eclipsing binary KIC 9026766: analysis of light curve and periodic changes

A new look at the YY CrB binary system

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