Results 71 to 80 of about 3,153 (136)
Empirical Stability Criteria for 3D Hierarchical Triple Systems. I. Circumbinary Planets
The Astronomical JournalIn this work we revisit the problem of the dynamical stability of hierarchical triple systems with applications to circumbinary planetary orbits. We derive critical semimajor axes based on simulating and analyzing the dynamical behavior of 3 × 10 ^8 ...
Nikolaos Georgakarakos +3 more
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On the formation and migration of giant planets in circumbinary discs [PDF]
Astronomy & Astrophysics, 2008 We present the results of hydrodynamic simulations of the formation and subsequent orbital evolution of giant planets embedded in a circumbinary disc. We assume that a 20 earth masses core has migrated to the edge of the inner cavity formed by the binary where it remains trapped by corotation torques.
Arnaud Pierens, Richard P. Nelson
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Kozai-Lidov cycles towards the limit of circumbinary planets
, 2015 In this paper we answer a simple question: can a misaligned circumbinary planet induce Kozai-Lidov cycles on an inner stellar binary? We use known analytic equations to analyse the behaviour of the Kozai-Lidov effect as the outer mass is made small.
Martin, David V. +1 more
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Circumbinary planets – why they are so likely to transit [PDF]
Monthly Notices of the Royal Astronomical Society, 2015 Transits on single stars are rare. The probability rarely exceeds a few per cent. Furthermore, this probability rapidly approaches zero at increasing orbital period. Therefore transit surveys have been predominantly limited to the inner parts of exoplanetary systems. Here we demonstrate how circumbinary planets allow us to beat these unfavourable odds.
Martin, David V. +1 more
openaire +4 more sources
Planetary Rhythms: Synchronous Circulation on Variably Irradiated Asynchronous Planets
The Astrophysical JournalTidal locking of planets to their host stars results in an atmospheric circulation with a hotspot fixed to the frame of reference of the planet. On the other hand, asynchronously rotating planets feature moving hotspots either lagging or leading the ...
Deepayan Banik
doaj +1 more source
Evolution of circumbinary planets around eccentric binaries: The case of Kepler-34
, 2015 The existence of planets orbiting a central binary star system immediately raises questions regarding their formation and dynamical evolution. Recent discoveries of circumbinary planets by the Kepler space telescope has shown that some of these planets ...
Haghighipour, Nader, Kley, Wilhelm
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The Astronomical JournalClose binary systems present challenges to planet formation. As binary separations decrease, so do the occurrence rates of protoplanetary disks in young systems and planets in mature systems.
Benjamin M. Tofflemire +10 more
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Young Binary Stars and Associated Disks [PDF]
, 1999 The typical product of the star formation process is a binary star. Binaries have provided the first dynamical measures of the masses of pre-main-sequence (PMS) stars, providing support for the calibrations of PMS evolutionary tracks.
Ghez, Andrea M. +3 more
core +2 more sources
Regions of Dynamical Stability for Discs and Planets in Binary Stars of the Solar Neighborhood
, 2012 Using the results of Pichardo \et (2005,2008), we determine regions of dynamical stability where planets (or discs in general) could survive in stable orbits around binary stellar systems.
Aguilar, Luis +2 more
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Dynamics of Circumstellar Disks III: The case of GG Tau A
, 2016 (abridged) We present 2-dimensional hydrodynamic simulations using the Smoothed Particle Hydrodynamic (SPH) code, VINE, to model a self-gravitating binary system similar to the GG Tau A system.
Marzari, F., Nelson, Andrew F.
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