CPL - Chalmers Publication Library
| Utbildning | Forskning | Styrkeområden | Om Chalmers | In English In English Ej inloggad.

Dynamical Habitability of Planetary Systems

R. Dvorak ; E. Pilat-Lohinger ; E. Bois ; R. Schwarz ; B. Funk ; C. Beichman ; W. Danchi ; C. Eiroa ; M. Fridlund ; T. Henning ; T. Herbst ; L. Kaltenegger ; H. Lammer ; A. Leger ; René Liseau (Institutionen för radio- och rymdvetenskap, Radioastronomi och astrofysik) ; J. Lunine ; F. Paresce ; A. Penny ; A. Quirrenbach ; H. Rottgering ; F. Selsis ; J. Schneider ; D. Stam ; G. Tinetti ; G. J. White
Astrobiology (1531-1074). Vol. 10 (2010), 1, p. 33-43.
[Artikel, refereegranskad vetenskaplig]

The problem of the stability of planetary systems, a question that concerns only multiplanetary systems that host at least two planets, is discussed. The problem of mean motion resonances is addressed prior to discussion of the dynamical structure of the more than 350 known planets. The difference with regard to our own Solar System with eight planets on low eccentricity is evident in that 60% of the known extrasolar planets have orbits with eccentricity e > 0.2. We theoretically highlight the studies concerning possible terrestrial planets in systems with a Jupiter-like planet. We emphasize that an orbit of a particular nature only will keep a planet within the habitable zone around a host star with respect to the semimajor axis and its eccentricity. In addition, some results are given for individual systems (e.g., Gl777A) with regard to the stability of orbits within habitable zones. We also review what is known about the orbits of planets in double-star systems around only one component ( e. g., gamma Cephei) and around both stars (e.g., eclipsing binaries).

Nyckelord: Orbital dynamics, Habitability, Terrestrial exoplanets, extra-solar planets, global dynamics, terrestrial planets, predicting, planets, apsidal resonance, stability limits, double stars, orbits, zones, motion

Denna post skapades 2010-04-22. Senast ändrad 2011-02-24.
CPL Pubid: 120234


Läs direkt!

Länk till annan sajt (kan kräva inloggning)

Institutioner (Chalmers)

Institutionen för radio- och rymdvetenskap, Radioastronomi och astrofysik (2005-2010)


Astronomi, astrofysik och kosmologi

Chalmers infrastruktur