Not exact matches
They suggested that the magnetar
formed through the interactions of two very massive
stars orbiting one another in a
binary system so compact that it would fit within the orbit of the Earth
around the Sun.
It
forms a close
binary with another massive
star within the open cluster, meaning that the two orbit
around a shared centre of mass.
Cygnus X-1 was found as part of a
binary star system in which an extremely hot and bright
star called a blue supergiant
formed an accretion disk
around an invisible object.
Scholz's
star is actually a
binary system
formed by a small red dwarf, with about 9 % of the mass of the Sun,
around which a much less bright and smaller brown dwarf orbits.
Now that planets are often found
around binary stars (an unstable situation), it is clear that the planets are young, and they must have
formed at about the same time as their
binary stars.
The orbit of an Earth - like planet
around the tight
binary system that
star Ba
forms with its brown dwarf companion in the liquid water zone would have to be centered
around 1.1 AU — a little farther than Earth's orbital distance
around Sol — with an orbital period exceeding one Earth year.