A GALACTIC HIT AND RUN

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Bad things can occur to great galaxies. The blue intent in this picture is a singular ring galaxy, 440 million light-years from Earth in a constellation Cetus. The ring was once a normal hulk universe similar to a own, though a not as big universe crushed right by a disk. The intruder’s sobriety initial pulled stars and- gas toward a victim’s center. Then, after a not as big universe plunged by a hoop and- came out a alternative side, a stars and- gas rebounded outward, formulating an expanding ring which squeezed gas in to new- stars, a brightest of which gleam prohibited and- blue. The ring right away measures 38,000 light-years across, about a third a hole of a Milky Way’s hoop of stars. Recently astronomers during a University of Oxford used a 200-inch telescope atop Palomar Mountain in California to magnitude velocities in a ring. These measurements, to be reported in Monthly Notices of a Royal Astronomical Society, exhibit which a antagonist universe struck during an point of view of about 45˚ from a exact a little 50 million years ago. The guilty celebration isn’t tough to find: it’s a odd-looking universe left of a ring. Together a span is well known as Arp 147.

Blinkiz 10 Jun, 2011

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Source: http://www.digdod.com/a-galactic-hit-and-run-1033490.html
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