Trojans in habitable zones

Richard Schwarz, Elke Pilat-Lohinger, Rudolf Dvorak, B. Érdi, Zsolt Sándor

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

With the aid of numerical experiments we examined the dynamical stability of fictitious terrestrial planets in 1:1 mean motion resonance with Jovian-like planets of extrasolar planetary systems. In our stability study of the so-called "Trojan" planets in the habitable zone, we used the restricted three-body problem with different mass ratios of the primary bodies. The application of the three-body problem showed that even massive Trojan planets can be stable in the 1:1 mean motion resonance. From the 117 extrasolar planetary systems only 11 systems were found with one giant planet in the habitable zone. Out of this sample set we chose four planetary systems - HD17051, HD27442, HD28185, and HD108874 - for further investigation. To study the orbital behavior of the stable zone in the different systems, we used direct numerical computations (Lie Integration Method) that allowed us to determine the escape times and the maximum eccentricity of the fictitious "Trojan planets."

Original languageEnglish
Pages (from-to)579-586
Number of pages8
JournalAstrobiology
Volume5
Issue number5
DOIs
Publication statusPublished - Oct 2005

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Planets
planets
planet
planetary systems
three body problem
sampling
methodology
terrestrial planets
eccentricity
mass ratios
escape
orbitals

Keywords

  • Dynamical astronomy
  • Exoplanets
  • Habitable zone
  • Trojan planet

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)

Cite this

Schwarz, R., Pilat-Lohinger, E., Dvorak, R., Érdi, B., & Sándor, Z. (2005). Trojans in habitable zones. Astrobiology, 5(5), 579-586. https://doi.org/10.1089/ast.2005.5.579

Trojans in habitable zones. / Schwarz, Richard; Pilat-Lohinger, Elke; Dvorak, Rudolf; Érdi, B.; Sándor, Zsolt.

In: Astrobiology, Vol. 5, No. 5, 10.2005, p. 579-586.

Research output: Contribution to journalArticle

Schwarz, R, Pilat-Lohinger, E, Dvorak, R, Érdi, B & Sándor, Z 2005, 'Trojans in habitable zones', Astrobiology, vol. 5, no. 5, pp. 579-586. https://doi.org/10.1089/ast.2005.5.579
Schwarz R, Pilat-Lohinger E, Dvorak R, Érdi B, Sándor Z. Trojans in habitable zones. Astrobiology. 2005 Oct;5(5):579-586. https://doi.org/10.1089/ast.2005.5.579
Schwarz, Richard ; Pilat-Lohinger, Elke ; Dvorak, Rudolf ; Érdi, B. ; Sándor, Zsolt. / Trojans in habitable zones. In: Astrobiology. 2005 ; Vol. 5, No. 5. pp. 579-586.
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