Due to the insensitive
environmental conditions, the planets could not form near the galactic center.
However, new research conducted by astronomers at the Harvard-Smithsonian
Center for Astrophysics shows that it is possible to form planets in these
vortices cosmic.
As evidence point to
the recent discovery of a cloud of hydrogen and helium galactic heading
downtown. They argue that this cloud represents the remains of a shattered
protoplanetary disk orbiting a star invisible.
"This unlucky star
was pushed to the central black hole. And although she survives, its
protoplanetary disk may not have the same luck," said lead author Ruth
Murray-Clay. The results appear in the journal Nature.
The protoplanetary
cloud was discovered last year by a team of astronomers using the VLT
technology. Then there was speculation that had formed from gas that flowed
from one star to another when the two collided. But Murray-Clay and Avi Loeb
propose a different explanation. Newborn stars are able to retain a surrounding
disk of gas and dust for eons. If the star is introduced into the vortex of the
gravitational force of the central black hole in our galaxy, the tidal forces
and gravitation would shatter this hard in a matter of years. They also
identified the possible source of the lost star: a ring of stars orbiting the
galactic center at a distance of about a tenth of a light year. Astronomers
have detected dozens of bright young stars in this ring, suggesting that there
could also be stars similar to the Sun interactions between stars could throw
into the galactic center to one or several of his companions, along with their
protoplanetary disks.
Although this is
destroying protoplanetary disk, the stars that remain on the disk could still
maintain their own. Therefore planets could form in spite of the hostile
environment in which they live. As the stars are coming closer and closer to
the galactic center attracted by the gravitational pull of the black hole,
their records will be torn away, leaving only a dense stellar core. The
friction heats the gas to temperatures high enough to be detected.
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