Circumbinary planet study around NSVS 14256825

Abstract

The period variability of (O-C) diagram of an eclipsing binary, NSVS 14256825, which is composed of a hot subdwarf type OB star (sdOB) and a main-sequence low-mass type M star (dM) in close orbit with period P=0.110374 days, previously showed sinusoidal signal cause by the light travel time effects. This signal can be caused by the presence of third bodies. We re-examined (O-C) diagram of the system. We combined eclipse timings from published data and the data taken from ULTRASPEC at 2.4 m at Thai National Telescope on November 2018. From the fitting model, the parameters of the third body in NSVS 14256825 system are obtained.

Metadata

Item Type:	Proceedings Paper
Authors/Creators:	Sappankum, P. Komonjinda, S. Awiphan, S. Rattanamala, R. Dhillon, V.S. https://orcid.org/0000-0003-4236-9642 Marsh, T.R. Suphapolthaworn, S.
Editors:	Laosiritaworn, Y. Tepnual, T. Kessaratikoon, P. Thountom, S.
Copyright, Publisher and Additional Information:	© 2019 IOP Publishing. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence (http://creativecommons.org/licenses/by/3.0). Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
Dates:	Accepted: 18 October 2019 Published (online): 16 December 2019 Published: 16 December 2019
Institution:	The University of Sheffield
Academic Units:	The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield)
Depositing User:	Symplectic Sheffield
Date Deposited:	08 Jan 2020 12:31
Last Modified:	08 Jan 2020 12:31
Status:	Published
Publisher:	IOP Publishing
Refereed:	Yes
Identification Number:	10.1088/1742-6596/1380/1/012095
Open Archives Initiative ID (OAI ID):	oai:eprints.whiterose.ac.uk:155359

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Circumbinary planet study around NSVS 14256825

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