New findings presented last month at the American Astronomical Society conference, in Washington, "jeopardize" the optimism expressed by quite a few scientists regarding the existence of additional life in our galaxy, beyond Earth
By: Dr. Noah Brosh
A careful scan of 15 star systems, which are in formation regions
massive of stars, showed that the other bodies in star systems
Doubles are not planets, but ordinary stars. The conclusion:
The possibilities for the existence of other planets in the universe have decreased (pass
to our solar system) and the chances of finding planets on them are small
Life forms may appear.
The new finding is the result of the research of astronomer Chris Corasco, from the institute
of California technology, carried out using the giant Keck telescope,
in hawaii Corasco focused on pairs of stars, which reside in path regions
The Milky Way in which many star formation events have recently been observed.
The sample chosen for the study contained very young stars, only about a million years old
sleep.
The goal was to find more bodies and at the stage when astronomers expect
for the appearance of planets. These are formed, I estimate, from the remnants of formation
the stars. Everything takes place in a large nebula that rotates and contracts due to force
Her own gravity. Due to the rotation, the nebula becomes a flat disk
in the center of which appears the star - the new sun. The remnants of the nebula become
Some of them go to the planets and some of them are "thrown" into space.
The research showed that the process does not occur, apparently, in star systems
Doubles and triples. After two normal stars formed in the nebula
the original, it is possible that their mutual influence causes the other disks around to disintegrate
The stars and planets are not created. Only if you are left at the end of this process
A considerable amount of matter - and if it is large enough, can be created
An ordinary star, which produces light - but not a planet. This finding has an impact
In calculating the chances of finding more planets in the universe. seen
That the chance - in calculating possible probabilities regarding the "Milky Way" - is small
And the general chance is also small.
