A Budding Nebula May Hatch a Butterfly

Planetary nebulae may seem strange subtle, beautiful, symmetrical sufficient, and bipolar planetary nebula is especially so. For example, Cassiopeia at 12 Hubble sale. Old former star such as the sun began to blow its external layers into space is created. We see it almost as a three-dimensional material side or double-lobed structure of butterfly in mapping when creating hourglass, two poles filtered out.
Hourglass planetaries structures are common. They still see the very start, but researchers are still far, do not know what form this unique nebulae.
But maybe they have now.

European Southern Observatory's very large telescope (VLT) using Pierre Kervella (UNIDAD Mixta Internacional faraænakaeā- Chilena de Astronomía) and colleagues have established a small L2 star nebula around the 3D structure of Puppis. Their lives are very evolved giants completed: 210 light-years of distance, the three closest "asymptotic giant branch" one star. With stars whose winds seems that induction L2 Puppis less evolved orange or red giant ,: (. Mira other) team has been established before the companion star.
The new VLT industry group / ZIMPOL tool of "ultra optics adapting the" bright stars and faint objects very close to the solution and plans to use polarimetry to study the system. The study identified the nebula presence and companion star, but has failed to produce a sharp enough image to confirm. Now, with confirmation hand, that could be the early establishment of a bipolar planetary nebula and its partner, the researchers L2 Puppis.
Let it be butterflies

Theoreticians how bipolar models planetaries two popular theories. Both require a companion star orbiting the primary aging. One scenario, with the companion stars to wind and radiation pressure pumping out perpendicular to the ring fraction of the matter, such as a ring around the outside of the orbit of a binary star system's old locks outflowing dust. This funnels the perpendicular walls created hourglass - butterfly wings.
The other theory, the aging star's companion star's disk, and only a very small jet aircraft to establish more around companion, concerned expelled towards the bottom.
Both theories companion star, the disk is necessary, and streams flowing out of disk bars. Field / ZIMPOL images Kervella and three colleagues also identifies the essential part, full-sized butterfly L2 Puppis' still air from a small start to the surface.