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- Centre National de la Recherche ScientifiqueFR321 papers
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6 papers · 2 filters
Revisiting the proposed circumbinary multi-planet system NSVS14256825
Tobias C. Hinse, Jae Woo Lee, Krzysztof Gozdziewski +2
In this work we carry out an analysis of the observed times of primary and secondary eclipses of the post-common envelope binary NSVS14256825. Recently, \cite{Almeida2013} proposed…
Constraints on a second planet in the WASP-3 system
G. Maciejewski, A. Niedzielski, A. Wolszczan +30
There have been previous hints that the transiting planet WASP-3 b is accompanied by a second planet in a nearby orbit, based on small deviations from strict periodicity of the obs…
Multiple mean motion resonances in the HR 8799 planetary system
Krzysztof Gozdziewski, Cezary Migaszewski
HR 8799 is a nearby star hosting at least four ~10 Jovian mass planets in wide orbits up to ~70au, detected through the direct, high-contrast infrared imaging. Large companions and…
Streaming instability in the quasi-global protoplanetary discs
Kacper Kowalik, Michal Hanasz, Dominik Wóltański +1
We investigate streaming instability using two-fluid approximation (neutral gas and dust) in a quasi-global, unstratified protoplanetary disc, with the help of PIERNIK code. We com…
A linear distribution of orbits in compact planetary systems?
Cezary Migaszewski, Krzysztof Gozdziewski, Mariusz Slonina
We report a linear ordering of orbits in a sample of multiple extrasolar planetary systems with super-Earth planets. We selected 20 cases, mostly discovered by the Kepler mission,…
Multi-site campaign for transit timing variations of WASP-12 b: possible detection of a long-period signal of planetary origin
G. Maciejewski, D. Dimitrov, M. Seeliger +38
The transiting planet WASP-12 b was identified as a potential target for transit timing studies because a departure from a linear ephemeris was reported in the literature. Such dev…