Pages

Wednesday, January 22, 2014

Research Supports Idea of Galaxy Grew from Inside-Out

Research Supports Idea of Galaxy Grew from Inside-Out
GalaxyIn a breakthrough revelation, it has been unveiled that there is a way by which it can be determined that how quickly different parts of the Milky Way have formed.  In order to do so, astronomers require monitoring the fast-produced elements like magnesium.
It has been suggested by researchers that stars in the inner region of the Milky Way's disc was formed first. This has acted as a support for existing ideas that Galaxy might have formed from inside-out.
In order to reach at the above mentioned conclusion, an international team of scientists have used data from the 8-m VLT in Chile, which is accredited as one of the world's largest telescopes.
Main aim of the researchers was to study stars in detail that varied in ages and locations in the Galactic disc. By observing the same, the astronomers wanted to know about metallicity, which is amount of chemical elements that are present in a star other than hydrogen and helium.
It shall be noted that older stars do not have many elements in their makeup and will be having lower metallicity. Lead investigator on the on the Gaia-ESO Project, Professor Gerry Gilmore, said that stars present in the outer regions of the Galactic disc are younger. They have low magnesium levels than their metallicity.
"We have been able to shed new light on the timescale of chemical enrichment across the Milky Way disc, showing that outer regions of the disc take a much longer time to form", said leader of the study, Maria Bergemann from Cambridge's Institute of Astronomy.

0 comments:

Post a Comment