The Hubble Space Telescope has peered inside a bubble of interstellar gas and dust that is being inflated by a hurricane of particles emitted from a young star.

This nearby star, which has no name, is losing 100 million times more mass per second than our own Sun, generating a torrent of speeding particles.



Because the star is surrounded by an envelope of gas the particle train, or stellar wind, collides with the gas.



This pushes it out forming a bubble of the type seen in the Hubble image.



The nebula N44F is one of a handful of known interstellar bubbles. In the past similar structures have been observed around massive stars and also around clusters of stars, where they are called super bubbles.



N44F is part of the larger N44 complex, which contains one of these super-bubbles.



More here.

0