TY - JOUR
T1 - Dynamics and Habitability in Binary Star Systems
AU - Eggl, Siegfried
AU - Georgakarakos, Nikolaos
AU - Pilat-Lohinger, Elke
N1 - Publisher Copyright:
© Copyright 2014 International Astronomical Union.
PY - 2014
Y1 - 2014
N2 - Determining planetary habitability is a complex matter, as the interplay between a planet's physical and atmospheric properties with stellar insolation has to be studied in a self consistent manner. Standardized atmospheric models for Earth-like planets exist and are commonly accepted as a reference for estimates of Habitable Zones. In order to define Habitable Zone boundaries, circular orbital configurations around main sequence stars are generally assumed. In gravitationally interacting multibody systems, such as double stars, however, planetary orbits are forcibly becoming non circular with time. Especially in binary star systems even relatively small changes in a planet's orbit can have a large impact on habitability. Hence, we argue that a minimum model for calculating Habitable Zones in binary star systems has to include dynamical interactions.
AB - Determining planetary habitability is a complex matter, as the interplay between a planet's physical and atmospheric properties with stellar insolation has to be studied in a self consistent manner. Standardized atmospheric models for Earth-like planets exist and are commonly accepted as a reference for estimates of Habitable Zones. In order to define Habitable Zone boundaries, circular orbital configurations around main sequence stars are generally assumed. In gravitationally interacting multibody systems, such as double stars, however, planetary orbits are forcibly becoming non circular with time. Especially in binary star systems even relatively small changes in a planet's orbit can have a large impact on habitability. Hence, we argue that a minimum model for calculating Habitable Zones in binary star systems has to include dynamical interactions.
KW - celestial mechanics
KW - habitability
KW - stars: binaries
KW - stars: planetary systems
UR - http://www.scopus.com/inward/record.url?scp=84956536156&partnerID=8YFLogxK
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U2 - 10.1017/S1743921314007820
DO - 10.1017/S1743921314007820
M3 - Article
AN - SCOPUS:84956536156
SN - 1743-9213
SP - 53
EP - 57
JO - Proceedings of the International Astronomical Union
JF - Proceedings of the International Astronomical Union
ER -