Results 31 to 40 of about 244,696 (195)

Hot Jupiters from secular planet–planet interactions [PDF]

open access: yesNature, 2011
accepted for publication by Nature, 3 figures (version after proof - some typos corrected)
Naoz, Smadar   +4 more
openaire   +3 more sources

Planet–planet scattering in circumstellar gas disks [PDF]

open access: yesAstronomy and Astrophysics, 2010
Astronomy and Astrophysics Letters, in ...
MARZARI, FRANCESCO   +2 more
openaire   +2 more sources

Multiverse Predictions for Habitability: Number of Potentially Habitable Planets

open access: yesUniverse, 2019
How good is our universe at making habitable planets? The answer to this depends on which factors are important for life: Does a planet need to be Earth mass? Does it need to be inside the temperate zone? are systems with hot Jupiters habitable? Here, we
McCullen Sandora
doaj   +1 more source

The Five Planets in the Kepler-296 Binary System All Orbit the Primary: A Statistical and Analytical Analysis [PDF]

open access: yes, 2015
Kepler-296 is a binary star system with two M-dwarf components separated by 0.2 arcsec. Five transiting planets have been confirmed to be associated with the Kepler-296 system; given the evidence to date, however, the planets could in principle orbit ...
Adams, Fred C.   +7 more
core   +4 more sources

Eccentricity Evolution of Extrasolar Multiple Planetary Systems due to the Depletion of Nascent Protostellar Disks

open access: yes, 2002
Most extrasolar planets are observed to have eccentricities much larger than those in the solar system. Some of these planets have sibling planets, with comparable masses, orbiting around the same host stars.
Artymowicz P.   +6 more
core   +1 more source

Metallicity of solar-type stars with debris discs and planets [PDF]

open access: yes, 2012
Around 16% of the solar-like stars in our neighbourhood show IR-excesses due to debris discs and a fraction of them are known to host planets. We aim to determine in a homogeneous way the metallicity of a sample of stars with known debris discs and ...
A. Mora   +63 more
core   +3 more sources

Effects of Dynamical Evolution of Giant Planets on Survival of Terrestrial Planets

open access: yes, 2013
The orbital distributions of currently observed extrasolar giant planets allow marginally stable orbits for hypothetical, terrestrial planets. In this paper, we propose that many of these systems may not have additional planets on these "stable" orbits ...
Armitage   +29 more
core   +1 more source

Origins of Eccentric Extrasolar Planets: Testing the Planet‐Planet Scattering Model [PDF]

open access: yesThe Astrophysical Journal, 2008
(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 planets revealed some discrepancies between the results of numerical simulations and the observed orbital elements of
Ford, Eric B., Rasio, Frederic A.
openaire   +2 more sources

An Objective Classification Scheme for Solar-System Bodies Based on Surface Gravity

open access: yesGalaxies
We introduce succinct and objective definitions of the various classes of objects in the solar system. Unlike the formal definitions adopted by the International Astronomical Union in 2006, group separation is obtained from measured physical properties ...
Dimitris M. Christodoulou   +2 more
doaj   +1 more source

On the Survivability and Metamorphism of Tidally Disrupted Giant Planets: the Role of Dense Cores

open access: yes, 2012
A large population of planetary candidates in short-period orbits have been found through transit searches. Radial velocity surveys have also revealed several Jupiter-mass planets with highly eccentric orbits.
Guillochon, James   +3 more
core   +1 more source

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