Can there be additional rocky planets in the Habitable Zone of tight binary stars with a known gas giant

摘要: Locating planets in Habitable Zones (HZs) around other stars is a growing field contemporary astronomy. Since large percentage of all G-M the solar neighborhood are expected to be part binary or multiple stellar systems, investigations whether habitable likely discovered such environments prime interest scientific community. As current exoplanet statistics predicts that t he chances higher find new worlds systems already known have planets, we examine four extrasolar planetary tight binaries order determine th eir capacity host additional terrestrial planets. Those Gliese 86,γ Cephei, HD 41004 and 196885. In case ofγ our results suggest only M dwarf companion could potentially worlds. Neither id entify stable, regions 196885 A. B can considered slightly more promising target search for Earth-twins. 86 A turned out very good candidate, assuming system’s history has not been excessively violent. For identified admissible stable orbits but those s trongly depend on parameters system. detailed investigation shows some initial conditions motion possible HZ spite massive HD41004 Bb found B, too,