|
Alien Invaders In The Milky Way
A new study, done team of Scientists from Swinburne
University of Technology, Australia, has indicated the
presence of an ‘Alien Invader’ which comprises of quarter of
star clusters in our Galaxy in the Milky Way. It also
implies that there could be six dwarf galaxies which are not
yet discovered but they are within the Milky Way apart from
the Two that have been discovered already.
Professor Duncan Forbes, an
Astronomer from Swinburne has shown that many of our
galaxy’s globular star clusters have migrated from their
birth place elsewhere into our Milky Way, therefore are
actually foreigners and aliens to us.. The period could
sometime a billion years ago accord to a scientist. Again
the Astronomers suspect. Some star clusters contain around
one Lakh to Million stars that are alien to our galaxy. It
is , but, difficult to pinpoint them.
Professors Duncan Forbes and
Terry Bridges examined the star clusters in the Milky Way
through Hubble Space Telescope data. Then they compiled a
largest ever database of high quality that included data on
chemical properties of each of the cluster stars. Professor
Forbes opined that we were able to identify key signatures
in many of these globular cluster stars that reflect their
external origin they belong to. According to Prof Forbes
that these.
Foreign-born globular star
clusters actually make up about one quarter of our Milky Way
globular star cluster system.. That implies tens of millions
of accreted stars – those that have joined and grown our
galaxy – from globular star clusters alone.
|
