J/AJ/116/1998 Outer planetary systems (Levison+, 1998)
Modeling the diversity of outer planetary systems.
Levison H.F., Lissauer J.J., Duncan M.J.
<Astron. J. 116, 1998 (1998)>
=1998AJ....116.1998L 1998AJ....116.1998L (SIMBAD/NED BibCode)
ADC_Keywords: Planets ; Solar system ; Models, evolutionary
Keywords: celestial mechanics, stellar dynamics - solar system: formation -
solar system: general
Abstract:
In order to better understand the range of dynamically long-lived
giant planet systems, we present the results of a set of bottom-up
numerical simulations designed to generate plausible giant planet
systems from a large number of planetary embryos. Our simulations
produced systems that are stable for at least a billion years and that
exhibit a wide range of characteristics. Some of these systems are
reminiscent of the outer solar system. The number of planets ranged
from one to seven. Many systems contained only Uranus-mass objects. We
constructed systems that were more compact than the outer solar system
and systems that were much sparser, with planets on very eccentric
orbits. Perhaps most surprisingly, some of the systems that we
constructed were stable for at least a billion years despite
undergoing macroscopic orbital changes on much shorter timescales.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
orbits.dat 72 94 Orbital elements
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Byte-by-byte Description of file: orbits.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Run Run number
3 A1 --- f [ab] Physical radius of a planet relative to
the radius of its Hill sphere flag (1)
5- 15 F11.5 geoMass Mass Mass in Earth masses
17- 25 F9.5 AU a Semimajor axis
27- 33 F7.5 --- e Eccentricity
35- 42 F8.5 deg i Inclination
44- 52 F9.5 deg w Argument of perihelion
54- 62 F9.5 deg W Longitude of the ascending node
64- 72 F9.5 deg M Mean anomaly
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Note (1): a: f=0.1
b: f=7*10-4
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History: From AJ electronic version
(End) James Marcout, Patricia Bauer [CDS] 09-Mar-1999