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Related papers: Populations of planets in multiple star systems

200 papers

Binary stars are ubiquitous; the majority of solar-type stars exist in binaries. Exoplanet occurrence rate is suppressed in binaries, but some multiples do still host planets. Binaries cause observational biases in planet parameters, with…

As of today over 40 planetary systems have been discovered in binary star systems. In all cases the configuration appears to be circumstellar, where the planets orbit around one of the stars, the secondary acting as a perturber. The…

Earth and Planetary Astrophysics · Physics 2015-05-14 Willy Kley

The frequency of planets in binaries is an important issue in the field of extrasolar planet studies, because of its relevance in estimating of the global planet population of our Galaxy and the clues it can give to our understanding of…

Astrophysics · Physics 2009-11-13 M. Bonavita , S. Desidera

Small planets ($R_{p} \leq 4 R_{\oplus}$) are divided into rocky super-Earths and gaseous sub-Neptunes separated by a radius gap, but the mechanisms that produce these distinct planet populations remain unclear. Binary stars are the only…

One notable example of exoplanet diversity is the population of circumbinary planets, which orbit around both stars of a binary star system. There are so far only 16 known circumbinary exoplanets, all of which lie in the same orbital plane…

Earth and Planetary Astrophysics · Physics 2025-04-17 Thomas A. Baycroft , Lalitha Sairam , Amaury H. M. J Triaud , Alexandre C. M. Correia

The occurrence of planets in binary star systems has been investigated via a variety of techniques that sample a wide range of semi-major axes, but with a preponderance of such results applicable to planets with semi-major axes less than a…

Solar and Stellar Astrophysics · Physics 2015-06-22 B. Zuckerman

Planets are observed to orbit the component star(s) of stellar binary systems on so-called circumprimary or circumsecondary orbits, as well as around the entire binary system on so-called circumbinary orbits. Depending on the orbital…

Extrasolar planets abound in almost any possible configuration. However, until five years ago, there was a lack of planets orbiting closer than 0.5 au to giant or subgiant stars. Since then, recent detections have started to populated this…

Earth and Planetary Astrophysics · Physics 2016-04-27 J. Lillo-Box , D. Barrado , A. C. M. Correia

Most young low-mass stars are born as binary systems, and circumstellar disks have recently been observed around the individual components of proto-binary systems (e.g. L1551-IRS5). Thus planets and planetary systems are likely to form…

Astrophysics · Physics 2007-05-23 Hans Zinnecker

Almost half of the stellar systems in the solar neighborhood are made up of multiple stars. In multiple-star systems, planet formation is under the dynamical influence of stellar companions, and the planet occurrence rate is expected to be…

Earth and Planetary Astrophysics · Physics 2015-06-22 Ji Wang , Debra A. Fischer , Ji-Wei Xie , David R. Ciardi

Roughly half of Solar-type planet hosts have stellar companions, so understanding how these binary companions affect the formation and evolution of planets is an important component to understanding planetary systems overall. Measuring the…

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

A binary star system is the most common result of the star formation process, and binary companions can disrupt both the formation of terrestrial planets and their long term prospects for stability. We present results from a large set of…

Astrophysics · Physics 2007-05-24 Elisa V. Quintana , Jack J. Lissauer

Among the hundred or so extrasolar planets discovered to date, 19 are orbiting a component of a double or multiple star system. In this paper, we discuss the properties of these planets and compare them to the characteristics of planets…

Astrophysics · Physics 2009-11-10 A. Eggenberger , S. Udry , M. Mayor

The abundance and properties of planets orbiting binary stars - circumbinary planets - are largely unknown because they are difficult to detect with currently available techniques. Results from the Kepler satellite and other studies…

Solar and Stellar Astrophysics · Physics 2015-06-23 Johannes Sahlmann , Amaury H. M. J. Triaud , David V. Martin

The star formation process in molecular clouds usually leads to the formation of multiple stellar systems, mostly binaries. Remaining disks around those stars may be located around individual stars (circumstellar disks) or around the entire…

Astrophysics · Physics 2007-05-23 Wilhelm Kley , Andreas Burkert

Estimating the effect binarity can have on planet-formation is of crucial importance, as almost half of field stars reside in multiple systems. One effective way to assess this effect is to get an accurate picture of the population of…

Earth and Planetary Astrophysics · Physics 2025-08-13 Philippe Thebault , Danilo Bonanni

Planets in binary-star systems exhibit demographic differences compared to planets in single-star systems. In particular, planets with binary-star hosts have a lower overall occurrence rate compared to their single-star counterparts, as…

Earth and Planetary Astrophysics · Physics 2026-03-24 Kendall Sullivan , Gregory J. Gilbert

Transiting circumbinary planets discovered by Kepler provide unique insight into binary star and planet formation. Several features of this new found population, for example the apparent pile-up of planets near the innermost stable orbit,…

Earth and Planetary Astrophysics · Physics 2016-06-15 Rachel A. Smullen , Kaitlin M. Kratter , Andrew Shannon

Thousands of confirmed and candidate exoplanets have been identified in recent years. Consequently, theoretical research on the formation and dynamical evolution of planetary systems has seen a boost, and the processes of planet-planet…

Earth and Planetary Astrophysics · Physics 2016-09-06 M. B. N. Kouwenhoven , Qi Shu , Maxwell Xu Cai , Rainer Spurzem
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