Light curve analysis of the eclipsing binary system V781 Tau

Abstract V781 Tau is one of W UMa eclipsing binary systems whose orbital period is 0.34 days. The 0.7-meter telescope with CCD photometric system in B and V filters was conducted at the Regional Observatory for the Public, Chachoengsao, Thailand during December 2018, UT. The Wilson-Devinney Technique was used for calculating the physical properties of V781 Tau. The results showed the inclination of their orbital is 66.140°±0.14. The effective temperature of the primary and secondary star is 6,060 and 5,881 K, respectively and the degree of contact is 4.38 %

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Synthetic Light-Curve Analysis of a Short Period Binary System YY Eri

Psychology and Education Journal ◽

10.17762/pae.v58i1.1843 ◽

2021 ◽

Vol 58 (1) ◽

pp. 5454-5456

Author(s):

Warisa Pancharoen, Wiraporn Maithong

Keyword(s):

Binary System ◽

Light Curve ◽

Effective Temperature ◽

Curve Analysis ◽

Photometric System ◽

Mass Ratio ◽

Light Curve Analysis ◽

The Public ◽

Secondary Star ◽

Short Period

YY Eri, the short-period binary system, is a W UMa type of the eclipsing binary system. This study using a 0.7-meter telescope with CCD photometric system in B V and R filters. It was observed at the Regional Observatory for the Public, Chachoengsao, Thailand on December 5, 2018, UT. The MaxIm DL software was used to analyzed the images photometry to produce the light curve. The Wilson-Devinney technique was computed the synthetic light curve that prefer to the physical properties of the YY Eri. The results show that the effective temperature of the primary and secondary star was 5533 and 5598 K, respectively. The inclination is 81.450 and the mass ratio is 0.55. The degree of contact was calculated as 16.64%

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Light Curve Analysis of some Eclipsing Binary Systems

Astrophysics ◽

10.1007/s10511-021-09665-4 ◽

2021 ◽

Vol 64 (1) ◽

pp. 33-40

Author(s):

M. S. Aleanzi ◽

M. M. Elkateeb

Keyword(s):

Light Curve ◽

Binary Systems ◽

Curve Analysis ◽

Light Curve Analysis ◽

Eclipsing Binary

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Correction to: Light Curve Analysis of some Eclipsing Binary Systems

Astrophysics ◽

10.1007/s10511-021-09699-8 ◽

2021 ◽

Vol 64 (3) ◽

pp. 425-425

Author(s):

M. S. Alenazi ◽

M. M. Elkateeb

Keyword(s):

Light Curve ◽

Binary Systems ◽

Curve Analysis ◽

Light Curve Analysis ◽

Eclipsing Binary

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First light curve analysis of eclipsing binary system ASAS 185542–0123.1

Journal of Physics Conference Series ◽

10.1088/1742-6596/1245/1/012019 ◽

2019 ◽

Vol 1245 ◽

pp. 012019

Author(s):

Agus T P Jatmiko ◽

M Yusuf ◽

M Putra

Keyword(s):

Binary System ◽

Light Curve ◽

Curve Analysis ◽

Light Curve Analysis ◽

Eclipsing Binary

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Frequency domain light curve analysis of partially eclipsing binary systems: With an application to ? Persei (Algol)

Astrophysics and Space Science ◽

10.1007/bf00642854 ◽

1977 ◽

Vol 47 (2) ◽

pp. 459-488 ◽

Cited By ~ 12

Author(s):

O. Demircan

Keyword(s):

Light Curve ◽

Frequency Domain ◽

Binary Systems ◽

Curve Analysis ◽

Light Curve Analysis ◽

Eclipsing Binary

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X-ray and UV emission of the ultrashort-period, low-mass eclipsing binary system BX Trianguli

Astronomy and Astrophysics ◽

10.1051/0004-6361/201834116 ◽

2018 ◽

Vol 619 ◽

pp. A138

Author(s):

V. Perdelwitz ◽

S. Czesla ◽

J. Robrade ◽

T. Pribulla ◽

J. H. M. M. Schmitt

Keyword(s):

Binary System ◽

Light Curve ◽

Binary Systems ◽

Uv Light ◽

Close Binary ◽

Eclipsing Binary ◽

X Ray ◽

Uv Emission ◽

Low Mass ◽

Orbital Modulation

Context.Close binary systems provide an excellent tool for determining stellar parameters such as radii and masses with a high degree of precision. Due to the high rotational velocities, most of these systems exhibit strong signs of magnetic activity, postulated to be the underlying reason for radius inflation in many of the components. Aims.We extend the sample of low-mass binary systems with well-known X-ray properties. Methods.We analyze data from a singular XMM-Newton pointing of the close, low-mass eclipsing binary system BX Tri. The UV light curve was modeled with the eclipsing binary modeling tool PHOEBE and data acquired with the EPIC cameras was analyzed to search for hints of orbital modulation. Results.We find clear evidence of orbital modulation in the UV light curve and show that PHOEBE is fully capable of modeling data within this wavelength range. Comparison to a theoretical flux prediction based on PHOENIX models shows that the majority of UV emission is of photospheric origin. While the X-ray light curve does exhibit strong variations, the signal-to-noise ratio of the observation is insufficient for a clear detection of signs of orbital modulation. There is evidence of a Neupert-like correlation between UV and X-ray data.

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