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Related papers: Predicting Planets in Known Extra-Solar Planetary …

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Observational surveys for extrasolar planets probe the diverse outcomes of planet formation and evolution. These surveys measure the frequency of planets with different masses, sizes, orbital characteristics, and host star properties. Small…

Earth and Planetary Astrophysics · Physics 2013-05-03 Andrew W. Howard

The lifetime of protoplanetary disks is a crucial parameter for planet formation research. Observations of disk fractions in star clusters imply median disk lifetimes of 1 -- 3 Myr. This very short disk lifetime calls for planet formation…

Astrophysics of Galaxies · Physics 2022-10-06 Susanne Pfalzner , Shahrzad Dehghani , Arnaud Michel

Most observed extrasolar planets have masses similar to, but orbits very different from, the gas giants of our solar system. Many are much closer to their parent stars than would have been expected and their orbits are often rather…

Astrophysics · Physics 2009-11-13 Daniel Malmberg , Melvyn B. Davies

The extrasolar planets (EPs) so far detected are very different to the planets in our own Solar System. Many of them have Jupiter-like masses and close-in orbits (the so-called hot planets, HPs), with orbital periods of only a few days. In…

Earth and Planetary Astrophysics · Physics 2009-11-13 S. Marchi , S. Ortolani , M. Nagasawa , S. Ida

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

Prevailing $N$-body planet formation models typically start with lunar-mass embryos and show a general trend of rapid migration of massive planetary cores to the inner Solar System in the absence of a migration trap. This setup cannot…

Earth and Planetary Astrophysics · Physics 2024-03-27 Tommy Chi Ho Lau , Man Hoi Lee , Ramon Brasser , Soko Matsumura

The solar system's terrestrial planets are thought to have accreted over millions of years out of a sea of smaller embryos and planetesimals. Because it is impossible to know the surface density profile for solids and size frequency…

Earth and Planetary Astrophysics · Physics 2020-05-11 Matthew S. Clement , Nathan A. Kaib , John E. Chambers

In this article, I examine several observational trends regarding protoplanetary disks, debris disks and exoplanets in binary systems in an attempt to constrain the physical mechanisms of planet formation in such a context. Binaries wider…

Solar and Stellar Astrophysics · Physics 2015-05-14 G. Duchene

We examine the formation of planets around binary stars in light of the recently discovered systems Kepler 16, 34 and 35. We conduct hydrodynamical simulations of self gravitating disks around binary systems. The selected binary and disk…

Earth and Planetary Astrophysics · Physics 2015-06-11 F. I. Pelupessy , S. Portegies Zwart

The high rate of planet detection among solar-type stars argues that planet formation is common. It is also generally assumed that planets form in protoplanetary discs like those observed in nearby star forming regions. On what timescale…

Solar and Stellar Astrophysics · Physics 2015-06-23 J. R. Najita , S. J. Kenyon

The theory of planet formation through pebble accretion (PA) has gained in popularity over the past decade. Most PA studies start with planetary embryos much larger than those expected from the streaming instability. In this study, we…

Earth and Planetary Astrophysics · Physics 2025-06-25 Mitchell John Yzer , Ramon Brasser , Inge Loes ten Kate

Exoplanet surveys have confirmed one of humanity's (and all teenagers') worst fears: we are weird. If our Solar System were observed with present-day Earth technology -- to put our system and exoplanets on the same footing -- Jupiter is the…

Earth and Planetary Astrophysics · Physics 2022-02-23 Sean N. Raymond , Andre Izidoro , Alessandro Morbidelli

The Kepler mission has discovered about a dozen circumbinary planetary systems, all containing planets on ~ 1 AU orbits. We place bounds on the locations in the circumbinary protoplanetary disk, where these planets could have formed through…

Earth and Planetary Astrophysics · Physics 2015-08-06 Kedron Silsbee , Roman R. Rafikov

The evolution of gravitationally unstable protoplanetary gaseous disks has been studied with the use of three-dimensional smoothed particle hydrodynamics simulations with unprecedented resolution. We have considered disks with initial…

Astrophysics · Physics 2008-11-26 Lucio Mayer , Thomas Quinn , James Wadsley , Joachim Stadel

Terrestrial planetary systems may exist around nearby stars as the Earth-sized counterparts to the many giant planets already discovered within the solar neighborhood. In this chapter we first discuss the numerous techniques which have been…

Astrophysics · Physics 2015-06-24 W. A. Traub , K. W. Jucks

Current observations indicate that the planet formation process often produces multiple planet systems with nearly circular orbits, regular spacing, a narrow range of inclination angles, and similar planetary masses of order $m_{\rm…

Earth and Planetary Astrophysics · Physics 2019-07-10 Fred C. Adams

The recently discovered planetary system HD45364 which consists of a Jupiter and Saturn mass planet is very likely in a 3:2 mean motion resonance. The standard scenario to form planetary commensurabilities is convergent migration of two…

Earth and Planetary Astrophysics · Physics 2010-01-29 Hanno Rein , John C. B. Papaloizou , Wilhelm Kley

The main properties of the observed extrasolar planets are reviewed with respect to their relevance to the formation scenario of planetary systems. Results of numerical computations of embedded planets in viscously evolving disks are…

Astrophysics · Physics 2007-05-23 Willy Kley

Primordial, or Pop III, supernovae (SNe) were the first, great nucleosynthetic engines in the Universe, forging the heavy elements required for the later formation of planets, and life. Past studies suggest that the rise of planet formation…