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Related papers: Dynamical Fates of S-Type Planetary Systems in Emb…

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We study orbital inclination changes associated with the precession of a disc-planet system that occurs through gravitational interaction with a binary companion on an inclined orbit. We investigate whether this scenario can account for…

Earth and Planetary Astrophysics · Physics 2014-02-14 M. Xiang-Gruess , J. C. B. Papaloizou

We investigate how the formation and evolution of extrasolar planetary systems can be affected by stellar encounters that occur in the crowded conditions of a stellar cluster. Using plausible estimates of cluster evolution, we show how…

Astrophysics · Physics 2019-08-17 Ian A. Bonnell , Kester W. Smith , Melvyn B. Davies , Keith Horne

Stars are commonly formed in binary systems, which provide a natural laboratory for studying planet formation in extreme conditions. In our first paper (Paper I) of a series Xie et al. (2011), we have shown that the intermediate stage -…

Earth and Planetary Astrophysics · Physics 2018-07-25 Yapeng Zhang , Qingqin Li , Ji-Wei Xie , Ji-Lin Zhou , Hui-Gen Liu , Hui Zhang

Recent radial velocity and transit data discovered $\sim 100$ planets in binary or triple stellar systems out of the entire population of a few thousand known planets. Stellar companions are expected to strongly influence both the formation…

Earth and Planetary Astrophysics · Physics 2018-12-05 Giacomo Fragione , Abraham Loeb , Idan Ginsburg

About half of all known stellar systems with Sun-like stars consist of two or more stars, significantly affecting the orbital stability of any planet in these systems. Here we study the onset of instability for an Earth-type planet that is…

Astrophysics · Physics 2007-12-20 J. Eberle , M. Cuntz , Z. E. Musielak

We investigate the orbital dynamics of circumbinary planetary systems with two planets around a circular or eccentric orbit binary. The orbits of the two planet are initially circular and coplanar to each other, but misaligned with respect…

Earth and Planetary Astrophysics · Physics 2021-12-15 Cheng Chen , Stephen H. Lubow , Rebecca G. Martin

Spurred by the discovery of numerous exoplanets in multiple systems, binaries have become in recent years one of the main topics in planet formation research. Numerous studies have investigated to what extent the presence of a stellar…

Earth and Planetary Astrophysics · Physics 2017-11-29 Ph. Thebault , N. Haghighipour

With more than 260 extrasolar planetary systems discovered to-date, the search for habitable planets has found new grounds. Unlike our solar system, the stars of many of these planets are hosts to eccentric or close-in giant bodies. Several…

Astrophysics · Physics 2014-11-18 Nader Haghighipour

The search for satellites around exoplanets represents one of the greatest challenges in advancing the characterization of planetary systems. Currently, we can only detect massive satellites, which resemble additional planetary companions…

Earth and Planetary Astrophysics · Physics 2023-11-06 C. Lazzoni , K. W. Rice , A. Zurlo , S. Hinkley , S. Desidera

The statistical properties of planets in binaries were investigated. Any difference to planets orbiting single stars can shed light on the formation and evolution of planetary systems. As planets were found around components of binaries…

Astrophysics · Physics 2009-11-11 S. Desidera , M. Barbieri

Binaries occur in many astrophysical systems, from young protostellar binaries in star forming regions to supermassive black hole binaries in galaxy centers. In many cases, a circumbinary disk of gas forms around the binary with an orbit…

Earth and Planetary Astrophysics · Physics 2026-01-12 Cheng Chen , Philip J. Armitage , C. J. Nixon

Nearly every star known to host planets will become a white dwarf, and nearly 100 planet-hosts are now known to be accompanied by binary stellar companions. Here, we determine how a binary companion triggers instability in otherwise…

Earth and Planetary Astrophysics · Physics 2016-12-21 Dimitri Veras , Nikolaos Georgakarakos , Ian Dobbs-Dixon , Boris T. Gaensicke

(Abridged) In planetary systems with two or more giant planets, dynamical instabilities can lead to collisions or ejections through strong planet--planet scattering. Previous studies for simple initial configurations with two equal-mass…

Astrophysics · Physics 2008-12-18 Eric B. Ford , Frederic A. Rasio

The discovery of exoplanets in binary star systems-now numbering about 850 of the nearly 4,600 known exoplanet systems-raises questions about whether observational bias or stellar companions inhibit planet formation. While most studies on…

Earth and Planetary Astrophysics · Physics 2025-12-19 Maximilian Zimmermann , Elke Pilat-Lohinger

The habitability of planets in binary star systems depends not only on the radiation environment created by the two stars, but also on the perturbations to planetary orbits and rotation produced by the gravitational field of the binary and…

Earth and Planetary Astrophysics · Physics 2016-09-01 Duncan H Forgan

Many recent observational studies have concluded that planetary systems commonly exist in multiple-star systems. At least ~20%, and presumably a larger fraction of the known extrasolar planetary systems are associated with one or more…

Astrophysics · Physics 2009-11-13 Genya Takeda , Ryosuke Kita , Frederic A. Rasio

The dominant mechanism for generating free-floating planets has so far remained elusive. One suggested mechanism is that planets are ejected from planetary systems due to planet-planet interactions. However, instability around a single star…

Earth and Planetary Astrophysics · Physics 2023-10-25 Cheng Chen , Rebecca G. Martin , Stephen H. Lubow , C. J. Nixon

Planet formation is often considered in the context of one circumstellar disk around one star. Yet stellar binary systems are ubiquitous, and thus a substantial fraction of all potential planets must form and evolve in more complex,…

Earth and Planetary Astrophysics · Physics 2022-02-16 Trent J. Dupuy , Adam L. Kraus , Kaitlin M. Kratter , Aaron C. Rizzuto , Andrew W. Mann , Daniel Huber , Michael J. Ireland

As of today ten circumbinary planets orbiting solar type main sequence stars have been discovered. Nearly all of them orbit around the central binary very closely to the region of instability where it is difficult to form them in situ. It…

Earth and Planetary Astrophysics · Physics 2019-07-10 Wilhelm Kley , Daniel Thun , Anna B. T. Penzlin

Most planetary systems -- including our own -- are born within stellar clusters, where interactions with neighboring stars can help shape the system architecture. This paper develops an orbit-averaged formalism to characterize the cluster's…

Earth and Planetary Astrophysics · Physics 2020-05-20 Konstantin Batygin , Fred C. Adams , Yuri K. Batygin , Erik A. Petigura