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Geophysical and atmospheric evolution of habitable planets

  • Helmut Lammer* (Corresponding Author)
  • , Frank Selsis
  • , Eric Chassefière
  • , Doris Breuer
  • , Jean Mathias Grießmeier
  • , Yuri N. Kulikov
  • , Nikolai V. Erkaev
  • , Maxim L. Khodachenko
  • , Helfried K. Biernat
  • , Francois Leblanc
  • , Esa Kallio
  • , Richard Lundin
  • , Frances Westall
  • , Siegfried J. Bauer
  • , Charles Beichman
  • , William Danchi
  • , Carlos Eiroa
  • , Malcolm Fridlund
  • , Hannes Gröller
  • , Arnold Hanslmeier
  • Walter Hausleitner, Thomas Henning, Tom Herbst, Lisa Kaltenegger, Alain Léger, Martin Leitzinger, Herbert I.M. Lichtenegger, René Liseau, Jonathan Lunine, Uwe Motschmann, Petra Odert, Francesco Paresce, John Parnell, Alan Penny, Andreas Quirrenbach, Heike Rauer, Huub Röttgering, Jean Schneider, Tilman Spohn, Anja Stadelmann, Günter Stangl, Daphne Stam, Giovanna Tinetti, Glenn J. White
*Corresponding author for this work
  • Austrian Academy of Sciences
  • Université de Bordeaux
  • Université de Versailles Saint-Quentin-en-Yvelines
  • German Aerospace Center
  • Netherlands Institute for Radio Astronomy
  • Russian Academy of Sciences
  • RAS - Siberian Branch
  • Finnish Meteorological Institute
  • Uppsala University
  • CNRS
  • University of Graz
  • California Institute of Technology
  • NASA Goddard Space Flight Center
  • Universidad Autónoma de Madrid
  • ESTEC
  • Max Planck Institute for Astronomy
  • Harvard University
  • Université Paris-Sud
  • Chalmers University of Technology
  • University of Arizona
  • Technical University of Braunschweig
  • Istituto Nazionale di Astrofisica
  • Rutherford Appleton Laboratory
  • Heidelberg University 
  • Leiden University
  • Observatoire de Paris
  • SRON Netherlands Institute for Space Research
  • University College London
  • Open University Milton Keynes

Research output: Contribution to journalArticlepeer-review

Abstract

The evolution of Earth-like habitable planets is a complex process that depends on the geodynamical and geophysical environments. In particular, it is necessary that plate tectonics remain active over billions of years. These geophysically active environments are strongly coupled to a planet's host star parameters, such as mass, luminosity and activity, orbit location of the habitable zone, and the planet's initial water inventory. Depending on the host star's radiation and particle flux evolution, the composition in the thermosphere, and the availability of an active magnetic dynamo, the atmospheres of Earth-like planets within their habitable zones are differently affected due to thermal and nonthermal escape processes. For some planets, strong atmospheric escape could even effect the stability of the atmosphere.

Original languageEnglish
Pages (from-to)45-68
Number of pages24
JournalAstrobiology
Volume10
Issue number1
DOIs
Publication statusPublished - 1 Jan 2010

Bibliographical note

The authors acknowledge the Helmholtz-Gemeinschaft, as this research has been supported by the Helmholtz Association through the research alliance “Planetary Evolution and Life,” the International Space Science Institute (ISSI, Bern, Switzerland) and the ISSI teams “Evolution of Habitable Planets” and “Evolution of Exoplanet Atmospheres and Their Characterization.” The authors also acknowledge fruitful discussions during various meetings related to the Europlanet N2 activities as well as within the N2 Discipline working groups DWG 4 and DWG 5. Furthermore, we acknowledge support by the Austrian Academy of Sciences, “Verwaltungsstelle für Auslandsbeziehungen,” and by the Russian Academy of Sciences (RAS), Russian Federation. We thank also NASA for support via NAG5-13045 at the Harvard Smithsonian Center for Astrophysics, USA. Furthermore, we acknowledge the Austrian FWF (Wissenschaftsfond) for supporting this work via the following projects: P20145-N16 and FWF-RFBR I 199-N16; N6, 09-02-91002-ANF-a.

Keywords

  • Atmosphere evolution
  • Geophysics
  • Habitability
  • Terrestrial planets

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