SIMBAD references

2014MNRAS.438..307H - Mon. Not. R. Astron. Soc., 438, 307-317 (2014/February-2)

Revisiting the proposed circumbinary multiplanet system NSVS 14256825.

HINSE T.C., LEE J.W., GOZDZIEWSKI K., HORNER J. and WITTENMYER R.A.

Abstract (from CDS):

In this work, we carry out an analysis of the observed times of primary and secondary eclipses of the post-common envelope binary NSVS 14256825. Recently, Almeida, Jablonski and Rodrigues proposed that two circumbinary companions orbit this short-period eclipsing binary, in order to explain observed variations in the timing of mutual eclipses between the two binary components. Using a standard weighted least-squares minimization technique, we have extensively explored the topology of χ2 parameter space of a single planet model. We find the data set to be insufficient to reliably constrain a one-companion model. Various models, each with similar statistical significance, result in substantially different orbital architectures for the additional companion. No evidence is seen for a second companion of planetary nature. We suspect insufficient coverage (baseline) of timing data causing the best-fitting parameters to be unconstrained.

Abstract Copyright: © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2013)

Journal keyword(s): binaries: eclipsing - stars: individual: NSVS 14256825

Simbad objects: 6

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2020.09.29-22:39:10

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