Use a 3 camera widely "HST", seeing the stars and star clusters young individual in four galaxies are approximately 40 million light-years. Years of light around 5.9 trillion miles.
Ford said "scientists believed these galaxies dead finished making Star Wars a long time." "But we've shown that they are still alive, and stars at a fairly low level."
Galaxies come in two types: generally spiral galaxies like our Milky Way and elliptical galaxies. Stars in spiral galaxies are disk also contains cold, dense gas, new stars are formed regularly by Sun about one per year.
On the other hand, are the stars in elliptical galaxies billions of almost every year. These galaxies orbiting stars in every direction, like bees around the hive. Alibetikals cold gas are few, if any, and known not be stars.
Ford said that "previously be stars astronomers study looking at all the light from elliptical galaxy at once, because I usually don't see individual stars. "We trick is to make sensitive ultraviolet images with" HST ", which allows us to see individual stars.
Technology enabled astronomers to observe the stars, even if the Sun with a minimum of 100,000 annually.
Ford webrgman works to understand stellar birth rate and potential stars forming groups within alibetikals. In the milky way, stars usually form in the assemblies that contain tens to 100,000 stars. In elliptical galaxies, different circumstances because there is no disk material cold to form stars.
Ford said that "we were confused by some of the colors of objects in our images even realized it must be a star, where groups most star formation occurs in societies,".
The group came when they observed 105 Messier normal elliptical galaxy is 34 million light-years in the constellation Leo. If no previous reference to be stars in 105 Messier, Ford Bergman and bright stars, very few blue, like Star one 10 to 20 times the mass of the Sun.
They saw objects that are not blue enough to be stars, but instead are collections of many stars. When accounting for these groups, the stars are in 105 Messier average rate of the Sun once every 10,000 years, Ford webrgman. Ford said "this isn't just a dash of be stars but an ongoing process".
These results raise new secrets, the source of gas forming stars.
Juman said "we're beginning a new line of research is very exciting, but sometimes confusing,". "We hope to continue this discovery with new notes really gives us an idea about the process of star formation in galaxies ' dead '".
Source of the story:
The above story is reprinted from materials provided by University of Michigan.
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