Advertisement

Estimations of orbital parameters of exoplanets from transit photometry by using dynamical constraints

  • Zsolt Sándor
Conference paper

Abstract

The probability of the detection of Earth-like exoplanets may increase in the near future after the launch of the space missions using the transit photometry as observation method. By using this technique only the semi-major axis of the detected planet can be determined, and there will be no information on the upper limit of its orbital eccentricity. However, the orbital eccentricity is a very important parameter, not only from a dynamical point of view, since it gives also information on the climate and the habitability of the Earth-like planets. In this paper a possible procedure is suggested for confining the eccentricity of an exoplanet discovered by transit photometry if an already known giant planet orbits also in the system.

Keywords

Exoplanets Planetary transit Three-body problem Stability Chaos detection 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Ford, E.B.: Quantifying the uncertainty in the orbits of extrasolar planets. Astron. J. 129, 1706–1717 (2005)CrossRefADSGoogle Scholar
  2. Kasting, J.F., Whitmire, D.P., Reynolds, R.T.: Habitable zones around main sequence stars. Icarus 101, 108–128 (1993)CrossRefADSGoogle Scholar
  3. Mayor, M., Queloz, D.: A Jupiter-mass companion to a solar-type star. Nature 378, 355–359 (1995)CrossRefADSGoogle Scholar
  4. Murray, C.D., Dermott, S.: Solar System Dynamics. CUP, Cambridge (1999)zbMATHGoogle Scholar
  5. Rivera, E.J., Lissauer, J.J., Butler, R.P., Marcy, G.W., Vogt, S.S., Fischer, D.A., Brown, T.M., Laughlin, G., Henry, G.W.: A ∼ 7.5M planet orbiting the nearby star, GJ 876. Astrophys. J. 634, 625–640 (2005)CrossRefADSGoogle Scholar
  6. Sándor, Zs., Érdi, B., Efthymiopoulos, C.: The phase space structure around L4 in the restricted three-body problem. Cel. Mech. Dynam. Astron. 78, 113–123 (2000)CrossRefADSzbMATHGoogle Scholar
  7. Sándor, Zs., Érdi, B., Széll, A., Funk, B.: The relative Lyapunov indicator: An efficient method of chaos detection. Cel. Mech. Dynam. Astron. 90, 127–138 (2004)CrossRefADSzbMATHGoogle Scholar

Copyright information

© Springer Science+Business Media B.V. 2006

Authors and Affiliations

  • Zsolt Sándor
    • 1
  1. 1.Department of AstronomyEötvös UniversityBudapestHungary

Personalised recommendations