Open AccessCircumbinary planet study around NSVS 14256825
Author(s) -
P. Sappankum,
S. Komonjinda,
S. Awiphan,
Ronnakrit Rattanamala,
V. Dhillon,
T. R. Marsh,
Suphakorn Suphapolthaworn
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1380/1/012095
Subject(s) - eclipse , subdwarf , circumbinary planet , diagram , astrophysics , physics , orbit (dynamics) , astronomy , planet , computer science , stars , engineering , white dwarf , aerospace engineering , database
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.