Herschel Space Observatory of the European Space Agency released the first pictures of the belt of dust - formed as a result of collisions of asteroids or comets - orbiting star-subgiant, which is located around the planetary system.
After a few billion years, during which the stars stably maintained hydrogen is burning stars like our sun, draining internal resources and
begin afterburner their outer shells. Stars expand and become subgiants, in order to later become a red giant.
The planets, asteroids and comet belts are able to persist even in the stars in the subgiant phase, but for the study of their properties is required observation. To this end, scientists are looking for dust disks around stars.
Because of the unique capabilities of the telescope Herschel, a team of astronomers was able to establish that the Kappa Northern Crown dust disk. The study star is from us at a distance of 100 light years, and is known to astronomers at least one planet the size of Jupiter, which is in its planetary system.
The studies come out in the journal Monthly Notices of the Royal Astronomical Society.