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Impact flux of asteroids and water transport to the habitable zone in binary star systems

Published online by Cambridge University Press:  05 January 2015

D. Bancelin ,
E. Pilat-Lohinger ,
S. Eggl  and
R. Dvorak
D. Bancelin
Affiliation:
Institute of Astrophysics, University of Vienna, Austria email: [email protected] IMCCE, Paris Observatory, France
E. Pilat-Lohinger
Affiliation:
Institute of Astrophysics, University of Vienna, Austria email: [email protected] Institute of Physics, University of Graz, Austria
S. Eggl
Affiliation:
IMCCE, Paris Observatory, France
R. Dvorak
Affiliation:
Institute of Astrophysics, University of Vienna, Austria email: [email protected]
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Abstract

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By now, observations of exoplanets have found more than 50 binary star systems hosting 71 planets. We expect these numbers to increase as more than 70% of the main sequence stars in the solar neighborhood are members of binary or multiple systems. The planetary motion in such systems depends strongly on both the parameters of the stellar system (stellar separation and eccentricity) and the architecture of the planetary system (number of planets and their orbital behaviour). In case a terrestrial planet moves in the so-called habitable zone (HZ) of its host star, the habitability of this planet depends on many parameters. A crucial factor is certainly the amount of water. We investigate in this work the transport of water from beyond the snow-line to the HZ in a binary star system and compare it to a single star system.

Keywords

celestial mechanicsstars: binariesstars: planetary systems
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 9 , Issue S310: Complex Planetary Systems , July 2014 , pp. 86 - 87
Copyright
Copyright © International Astronomical Union 2014 

References

Haghighipour, N. & Raymond, S. N. 2007, ApJ, 666:436–446Google Scholar