New Data on the Eclipsing Binary V1848 Ori and Improved Orbital and Light Curve Solutions

New Data on the Eclipsing Binary V1848 Ori and Improved Orbital and Light Curve Solutions

New observations of the eclipsing binary system V1848 Ori were carried out using the V filter resulting in a determination of new times of minima and new ephemeris were obtained. We presented the first complete analysis of the system’s orbital period behavior and analysis of O-C diagram done by the...

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Bibliographic Details
Main Authors: Davoudi Fatemeh, Poro Atila, Alicavus Fahri, Halavati Afshin, Doostmohammadi Saeed, Shahdadi AmirAbbas, Vahedi Sareh, Pishahang Arman, Zare Maryam, Jamali Milad, Salajeghe AmirMohammad, Jahediparizi Faezeh, Ashta Hassan, Shojaatalhosseini Seyed Mohsen
Format: Article
Language:English
Published: De Gruyter 2020-08-01
Series:Open Astronomy
Subjects:
photometry
ephemeris
sinusoidal
individual: v1848 ori
Online Access:https://doi.org/10.1515/astro-2020-0013
Description
Summary:New observations of the eclipsing binary system V1848 Ori were carried out using the V filter resulting in a determination of new times of minima and new ephemeris were obtained. We presented the first complete analysis of the system’s orbital period behavior and analysis of O-C diagram done by the GA and MCMC approaches in OCFit code. The O-C diagram demonstrates a sinusoidal trend in the data; this trend suggests a cyclic change caused by the LITE effect with a period of 10.57 years and an amplitude of 7.182 minutes. It appears that there is a third body with mass function of f (m3) = 0.0058 M⊙ in this binary system. The light curves were analyzed using the Wilson-Devinney code to determine some geometrical and physical parameters of the system. These results show that V1848 Ori is a contact W UMa binary system with the mass ratio of q = 0.76 and a weak fillout factor of 5.8%. The O’Connell effect was not seen in the light curve and there is no need to add spot.
ISSN:2543-6376

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