Telescope "Hubble" took an unusual ring-shaped galaxy


12/03/2013

Astrophysics, getting new data telescope "Hubble", published online annular space observatory image of the galaxy Zw II 28. The site contains several pictures in high resolution, as well as descriptions of them.

The unusual galaxy Zw II 28, which is in the left portion of the image belongs to the class of ring-shaped galaxies. Ring-shaped star cluster passing through it has given in the past, a small galaxy that has provoked a wave of star formation. As a general rule, the collision of galaxies due to their thinness does not lead to catastrophes like the collision of stars. Instead, it initiates a redistribution agent and promotes the formation of new bodies.

In the center of the ring-shaped galaxies in most cases contains a bright core of dense matter, which is surrounded by a perimeter around the bright young stars. Zw II 28, is a typical representative of his class, as such it has no core. Observations of "Hubble", as they note, suggest that passed through the galaxy Zw II 28 - companion, hidden in the center of the ring.

Astrophysicists have recently succeeded in using the telescope "Hubble" to observe gravitational lens in space - a phenomenon, which is a distortion of light predicted by Einstein’s general theory of relativity. Gravitational lenses help sometimes see distant cosmic objects, the direct observation of which is impossible because of the low brightness.


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